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Mathematics Questions and Answers January 02, 2022

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Examine the cell contributions. Is the pattern of deviations from the null similar to before

Third Party Data Breach Hits Bank of America, At Least 57,000 Records of Sensitive Personal Information Exposed

Does multicollinearity appear to be a problem in this dataset? How do you know, and how would you proceed? Firm ID firm performanc e 4.333333 4 customer orientatio n 5.5 6.25 long-term orientatio n 6.2 4.8 benchmarkin g planning risk taking 1 2 ownershi p (private = 1) 1 0 5 1.833333 5 5.8 3 0 4.666667 6.25 2 5.5 4 5 6 0 1 1 4 4.666667 5.666667
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An outliner is a data point that is outside the normal distribution. The outliner is often removed from the data before analysis because it Group of answer choices Leads to unbiased calculations Can distort the results of the data analysis Has an upward bias on the statistical measures in regression Will always add bias to the results of a

Determine whether the value is from a discrete or continuous data set. Number of notes in a song is 24 Question content area bottom Part 1 Is the value from a discrete or continuous data set

https://drive.google.com/file/d/16q58Gf9bfhxZG-9k-N6DeIWpq2yXFacg/view?usp=sharing The Excel file STATISTICSSTUDENTSSURVEYFORR contains the column ENDPULSEMIN (a numerical variable that measures student pulses after completing an online survey) and the column BEFPULSEMIN (a numerical variable that measures student pulses before completing an
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Markov chain Jenny plays a lottery game. Initially, she has 20 dollars in her pocket. She plans to stop playing once she achieves 60 dollars. She will also have to stop playing if she loses all her money. For each play, she has probability p to win 10 dollars and probability 1 p to lose 10 dollars. (a) Show the corresponding Markov chain (state
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Find the area of the surface generated when the given curve is revolved about the x-axis y=7x+5 on [0,8] S= (answer in terms of pi)

Which of the following samples would you expect to provide the least precise estimate for the average blood pressure among adult working men? Group of answer choices A simple random sample of 50 working men between the ages of 30 and 45 A simple random sample of 50 working men between the ages of 30 and 60 A simple random sample of 100 working men

Assume a population has the following elements: {2; 5; 8; 12; 13}. Samples of size 3 are drawn without replacement. 1.1) Find the sampling distribution of the sample mean. 1.2) Use (1.1) to find the mean and variance of the sample mean. 1.3) Find an unbiased estimate of the population variance. 1.4) Use the normal approximation and (1.2) to

We believe that77% of the population of all business statistics students consider statistics to be an exciting subject. Suppose we randomly and independently selected 53 students from the population. How of the sampled students do we expect to consider statistics to be an exciting subject

Reply to the following student's post. In your reply, please do one of the following: Compare it with your understanding of the topic Suggest ways to improve or modify Share alternative approaches to the same problem, or unnoticed insight on the work. Share your solutions to a Try it now Example: A bag with 4 green apples and 6 yellow apples.

4. What is your method for testing your hypotheses? How do you propose you will collect data to test your hypotheses

PC World proporciona evaluaciones de 15 notebook PCs (PC World, febrero de 2000). La puntuacin de funcionamiento mide cun rpido corre una PC un conjunto de aplicaciones usadas en administracin, en comparacin con una mquina de lnea base. Por ejemplo, una PC cuya puntuacin de funcionamiento es 200 es dos veces ms rpida que una mquina de lnea base.

In 1984, Australia introduced a $100 note, bringing the number of notes in common circulation to 7, being: $1, $2, $5, $10, $20, $50 and $100. If a person has exactly one of each of these notes, how many different values (excluding $0) can they create?For this question, we are investigating different strategies or techniques for working out how

With the current flourishing use of technology in education, a school district wants to conduct a study to determine which high-tech, the student-centered instructional method would be more successful in preparing students to take standardized tests in the district. You are hired as a statistician for the district to help them elucidated this

Listed below are the lead concentrations in g/g measured in different traditional medicines. Use a 0.10 significance level to test the claim that the mean lead concentration for all such medicines is less than 18 g/g.Assume that the sample is a simple random sample. 131320.521518.518.57.510.520.5 1) Assuming all conditions for conducting a

Find the indicated probabilities using the geometricdistribution, the Poissondistribution, or the binomial distribution. Then determine if the events are unusual. Ifconvenient, use the appropriate probability table or technology to find the probabilities. A major hurricane is a hurricane with wind speeds of 111 miles per hour or greater. During

What sample size is needed for to given the desired margin of error in estimating a population mean with the indicated level of confidence? A margin of error within 0.5 with 90% confidence, assuming =25

A business school has 15 full-time faculty and seven of them have tenure. A random sample of six faculty are randomly selected to form a committee. What is the mean of this distribution?

Select the correct answer from each drop-down menu. Some of the images in the diagram are images of polygon 1 from similarity transformations. 24 22 B 20 18 polygon 1 14 12 10 polygon 2/ polygon 4 8 6 polygon 3 polygon 5 lo 2 4 6 8 10 12 14 15 18 20 22 24 26 Polygon and polygon are similar to polygon 1
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For a linear regression, what is the r-value of the following data to three decimal places? X y 7 4 6 7 9 11 20 16 22 14
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Question 3 of 10 10 Points Given parallelogram ABCD, diagonals AC and BD intersect at point E. AE = 2x, BE = y + 10, CE = = + 2 and DE = 4y - 8. Find the length of AC. O A. 2 OB. 6 OC. 8 OD. 4
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3-6- Set up an integral that represents the length of the curve. Then use your calculator to find the length correct to four deci- mal places. 3. y= sinx. 0x

An automobile manufacturer introduces a new model that averages 27 miles per gallon in the city. A person who plans to purchase one of these new cars wrote the manufacturer for the details of the tests, and found out that the standard deviation is 3 miles per gallon. Assume that in-city mileage is approximately normally distributed. What is the

Suppose f(:) represents the profit of a widget. If the widget goes viral, what are the first derivative: negative zero positive and the second derivative: negative zero positive
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Show your calculation and give your answer in the fraction form and in the decimal form (to 4 digits) to receive full credit. Part 1: Let's play \"Craps\" (6 points) A favorite casino game of dice \"craps\" is played in the following manner: A player starts by rolling a pair of balanced dice. If the roll (the sum of two numbers showing on the
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In descriptive statistics, the score that divides a group in half is called the Blank______. Multiple choice question. mean mode median deviation

Which of the following is true regarding population variance? Outliers have no impact on the variance. It takes some or half of the data into consideration. It takes every single piece of data into consideration. It does not depend on the size of the population

Find the area of the surface generated when the given curve is revolved about the y-axis. The part of the curve y=2x-3 between the points (7/2, 4) and (13/2,10) SA= (an exact answer in terms of pi)

5 out of 5 points (Extra Credit) For a given data set, the following stem & leaf plot was developed. 5| 6, 8 6| 1, 2, 3, 5 7| 1, 6,8 8| 1, 4, 5 What are the values for the five box plot variables for this data set

Can you help me understand how to solve this problem? Evaluate the sum of: 1 + (x - 2) + (x - 2) 2 + (x - 2) 3 + ...... |x - 2| < 1 I know the answer is 1 / 3 - x. Thanks, Lisa Thanks, Lisa

Based on the principle of triadic relationships in balance theory, a fan of the Memphis Grizzlies, through their positive association with player Mike Conley, would have a positive or negative association with sponsors of Mike Conley

Suppose you wish to include a nominal variable that takes four different values as an independent variable in a logistic regression model.How many dummy variables should you include in your logistic regression model in order to accomplish this?

The average monthly car expense for an Uber/Lyft driver is $627 with a standard deviation of $143. These monthly car expenses are normally distributed. Use this information to answer the following questions: (*Must use values from z-table (back of CH6 notes) or you will not receive credit) A. What is the percentage of EV charges that will travel

In a normal distribution, fewer than 5% of outcomes are: Group of answer choices Outside 2 standard deviations above and below the mean Within 1 standard deviation above and below the mean Between the mean and 2 standard deviations above and below the mean Between 1 and 2 standard deviations above and below the mean

The data for this question consists of the one-way airfare (in US dollars) and distance (in miles) from city A to 17 other cities in the US. Interest centres on modelling airfare as a function of distance using regression. The output for this is shown below. SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard Error
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A random sample of likely voters showed that 4444% planned to support Measure X. The margin of error is 55 percentage points with a 9595% confidence level. Complete parts (a) through (c) below. Question content area bottom Part 1 a. Use a carefully worded sentence to report the 9595% confidence interval for the percentage of voters who plan to

Which of the following is NOT an equal probability of selection method of sampling ______. Group of answer choices systematic sampling proportional stratified sampling cluster random sampling convenience sampling

uelle profession?Write which profession each of these people practices based on the clues. Do not forget to include the indefinite articleun(e). Question 1 with 1 blank les criminels / Julien 1 of 1 est un criminel. Question 2 with 1 blank la guitare / Tanicha 1 of 1 est une guitariste. Question 3 with 1 blank l'hpital / Philippe 1 of 1 est un

solve the problems step by step Q.1: Two laboratories are being used to perform chemical analysis. Samples of the same (5*2=10) material is sent to the laboratories for analysis as part of the study to determine whether they give, on the average, the same result. The analytical results for the two laboratories are as follows: - A 5.7 6.4 6.9 5.1
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A set of data is summarized by the stem and leaf plot below. Stem 1 2 3 4 Leaf 00001122344589999 012366778889 00000013455679999 23335567777889 Which of the following statements are true? Select all correct answers. Select all that apply: The value18 appears0 times in the data set. The value39 appears4 times in the data set. The value21 appears2

Which type of error occurs when the information we collect consistently reflects a false picture of the concept we seek to measure because of either the way we collect the data or the dynamics of those who are providing the data

New Super Mario Bros. 2006 Nintendo DS 30.8 7. Minecraft: Pocket Edition 2011 Android, iOS, and others 30.0 8. New Super Mario Bros. Wii 2009 Wii 29.3 9. Wii Play 2006 Wii 28.0 10. Kinect Adventures 2010 Xbox 360 24.0 a. Which of the columns represent qualitative variables? b. Which of the columns represent quantitative variables? c. Which of the

Lab assignment SPSS Descriptives For this assignment, you need the data file called SPSS descriptives.sav 1) Get the frequencies of the variable sex. a) How many participants are female? (1 point) b) What percentage of participants is male? (1 point) 2) Find the mean, median, standard deviation, minimum, and maximum of the variable digit span. a)
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can you explain how to solve it? can you explain how to get p-value?? I highly appreciate it. 1. \f\f\f\f\f\f\f\f\f
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Statistical power is defined as 1 ______ the probability of ______ error. A. plus; type I B. plus; type II C. minus; a type I D. minus; a type

. The spotlight effect refers to overestimating the extent to which others notice your appearance or behavior, especially when you commit a social faux pas. Effectively, you feel as if you are suddenly standing in a spotlight with everyone looking. In one demonstration of this phenomenon, Gilovich, Medvec, and Savitsky (2000) asked college

Un paciente de 45 aos, con irritabilidad nerviosa, acude a consulta. En la revisin intraoral se observan cavitaciones vestibulares por afraccin en la regin premolar y canina, con dentina parcialmente expuesta y pigmentada sin procesos cariosos. Refiere no tener dolor, pero s sensibilidad; asimismo, manifiesta que la apariencia es inadecuada y que

Internet polling Group of answer choices has been conducted by the Harris Poll is problematic because many Americans do not go on-line violates the principle of random selection, according to many experts often takes the form of popular, unscientific "nonpolls" all of the above

https://myresource.phoenix.edu/secure/resource/PSY315v9/psy315_v9_wk1_and_wk2_assignment_data.xlsx Use the same survey data from the Week 1 assignment for this Summative Assessment. Continuing in your role as an intern with a community clinic, imagine your supervisor has now requested that you prepare a report for the entire staff of the clinic on

Is the MSE result of train 0.051809 and validation 0.056013 a good result

SOLVE IT ASAP PLEASE 2. Find the local extrema points for f(x) = 3x4 - 4x3. Show your work. [K/U =4] 3. Find the intervals of concavity for f(x) = 2x3 - 3x2 - 12x + 1 . Show your work. [K/U = 4]4. In the next graph, given the graph of the derivative f '(x) of the function f(x). Explain ...." X -1 -5 -A a) Find the intervals where function f(x) is
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State whether the data described below are discrete or continuous, and explain why. The numbers of different sizes offered by various clothing manufacturers Question content area bottom Part 1 Choose the correct answer below. A. The data are continuous because the data can take on any value in an interval. B. The data are discrete because the data

1.State the measurement scale for each. a.)Temperature in degrees Fahrenheit________________________________ b.)Height of trees________________________________ c.)Sandwiches available________________________________ d.)Pain levels on a scale from 1 to 10,________________________________ 10 being the worst pain

What is the sample space of the spinner? S={ }(Enter the values from least to greatest) What is setA? A = { } What is the probability of spinning a number less than 5 ? P(x What is setB? B={ } What is the probability of spinning a natural number ? P(N)= \f
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Need help with this question, please show work thank you \f
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rt 1 of 1 Question 1 of 10 10 Points Given parallelogram ABCD, diagonals AC and BD intersect at point E. AE = 2x, BE = y + 10, CE = x+ 2 and DE = 4y - 8. Find the length of BD. OA. 6 O B. 16 18
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Se realiz una investigacin para identificar si exista una relacin entre el nivel de autoestima (que poda ser alto, medio y bajo) y el nivel de asertividad (que tambin poda ser alto, medio o bajo). Cul de las siguientes medidas de correlacin pueden aplicarse? (Puedes seleccionar ms de una opcin) Rango Spearman Tau de Kendall Desviacin estndar

Which of the following is not true about population variance? Its value can be zero or a positive number. It is a biased estimator. It is an unbiased estimator. It is responsive to every data value

Can i have some assistence with the following question The recommended daily dietary allowance for zinc among males older than age 50 years is 15 mg/day. An article reports the following summary data on intake for a sample of males age 65-74 years: n = 112, x = 12.8, and s = 6.69. Does this data indicate that average daily zinc intake in the
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use four rectangle to estimate the area between the graph of the function f(x)= 9x+11 and the x-axis on the interval [0,4] using the left endpoints of the subintervals as the sample points. round any intermediate calculation, if needed, to no less than six decimal places, and round the final answer to three decimal place.

DiscussionI Hypothesize . Here are some ideas for your post to get you started: Live and in Person : Attend a webinar with your supplemental instructor or the Quantitative Skills CenterLinks to an external site. . In your post, share at least two key things you learned. Our Video Library : Let's keep building our shared resource pool. If you find

Ann Landers" is famous for giving advice. Once, in response to a letter from an engaged couple, she asked her readers to write and respond to the question "If you could do it over again, would you have children?" She received over 10,000 responses, 70% of whom said they would not have had children if they could do it over again. These results

Part 1 of 2 If mZABD= 82, what are mZABC and mZDBC? (4x +4)0 DJ (6x-2) B A mZABC =
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Types of tests Which of the following tests will you use for the hypothesis testing of the claims that your engineering team has made on the specifications of two models (Rocinante36 and Marengo32)? Z test, as the sample size is less than 30 T test, as the sample size is less than 30 Z test, as the sample size is more than 30 T test, as the sample

How do you know if the urease test is positive? Group of answer choices The medium will turn from red to yellow. The medium will turn from green to blue. The medium will turn from orange to red. The medium will turn from orange to violet

1. Use a graphing calculator to determine the linear, quadratic, or exponential equation that best represents the data. For linear and quadratics, round slope, y -intercept, and coefficients to the nearest integer. For exponential, round a to the nearest integer and b to the nearest tenth. \f\f\f\f\f\f\f\f\f
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10.11. Follow up onproblem 9.17, in which you compared Protestants and Catholics for significant differences in their level of education ( educ ) and self-rated social position ( rank ). We will now use One-Way Anova to compare all five categories of the relig variable. Click the SPSS icon on your desktop. Load the GSS2012 database. Click Analyze
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Pour your brown beans into your tub or bowl. These represent the wild animals in the habitat which you are studying. You have "captured" 30 of them, and are about to mark them and return them to the population. Count out 30 white beans and add them to the tub. These white beans represent your initial capture. You have marked them by "painting"

On the leeward side of the island of Oahu, in a small village, about 87% of the residents are of Hawaiian ancestry. Let n = 1, 2, 3, ... represent the number of people you must meet until you encounter the first person of Hawaiian ancestry in the village. (a) Write out a formula for the probability distribution of the random variable n . (Enter a

Patient 1 2 3 4 5 6 7 Before Ultrasound 30 52 42 56 49 41 32 After Ultrasound 32 53 48 63 47 45 39 Use the three-read strategy to understand the problem, and then carry out a hypothesis test to determine if the population mean difference in range of motion (beforeafter) is significantly different from zero. Use a significance level of =0.01 Find

A risk specialist wanted to determine which of two distributions (of theft losses) had the greater variability relative to their respective means. The best measure to apply is: Group of answer choices Standard deviation Dispersion Coefficient of variation Expected value

Find the values of a and b in the rhombus. Solve for the value of c, if c = a + b. 36+4 (5a-5) (14a +20) 136-9 O A. 5 OB. 7
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The Philippine eagle, the national bird of the Philippines, is one of the endangered species in the planet. This is attributed to the fact that they breed once every 2 years, and that average time to hatching of their offspring is 63 days. [Source: Sison, F. (n.d.). Pithecophaga Jefferyi (great Philippine eagle). Retrieved from

A random sample of 100 adults aged 18 years or older were given a list of ice cream flavors and were asked to identify which of the flavors on the list they liked. The numbers of positive responses for each flavor are shown in the following table. Chocolate 45 Strawberry 42 Vanilla 23 Mocha 19 Question content area bottom Part 1 Which of the

Use statistical methods to identify potential outliers. please explain more

Suppose that a city has 90000 dwelling units, of which 35000 are houses, 45000 are apartments, and 10000 are condominiums. We want to estimate the overall proportion (p) of households in which energy conservation is practiced, with a bound on the error of estimation equal 0.1.

Maria needs to know the dimensions of a triangular piece of property whose boundaries are shown below. She can measure two sides directly, but, unfortunately, one side lies in a lake and cannot be reached. To the nearest foot, what is the length of the unknown side? (Don't forget your units!) 117.3 feet 98.0 feet 103 X
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The Perimeter of a rectangle is 20 feet. Of all possible dimensions, the maximum area is 25 square feet when its length and width are both 5 feet. Are there dimensions that yield a minimum area? Explain.

Factor analysis is used to determine ______. Group of answer choices the number of underlying dimensions measured by a test test-retest reliability interrater reliability alternate forms reliability

You wish to test the following claim (Ha) at a significance level of a=0.005. H0: p=0.65, Ha: p>0.65. You obtain a sample of size n=669 in which there are 463 successful observations. For this test, you should use the (cumulative) binomial distribution to obtain an exact p-value. (Do not use the normal distribution as an approximation for the

The district sales manager for a major car manufacturer is studying car sales. Specifically, she would like to determine what factors affect the number of cars sold at a dealership. To investigate, she randomly selects 12 dealers. From these dealers she obtains the number of cars sold last month, the minutes of radio advertising purchase last
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1. Suppose that a friend gives us the chance to participate in a game. The game is as follows. There is a bucket containing 30 blue tokens, 21 orange tokens and 27 red tokens. We are to blindly reach into the bucket and randomly choose one token. Keeping this token (i.e. the chosen token is not returned to the bucket) we are to once again reach in
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54. 81(x) 10 NIH 25212 S a) c) 9x5 526 b) 9 5x5 z d) -9 -5x16724 CC
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The American Veterinary Association claims that the annual cost X of medical care for a cat is a random variable with expected value E(X) = $125 and standard deviation SD(X) = $30, and that the annual medical cost Y for a dog has expected value E(Y) = $100 and standard deviation SD(Y) = $25. Assume that medical costs for different dogs and cats
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1.(7 points) Calculate the standard deviation. What does this tell us? STANDARD DEVIATION:to 2 decimal places 2.(3 points) What is the population? 3.(3 points) What is the sample? 4.(2 points) Is the data quantitative or qualitative? \f
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answer and explain these 2 questions Question 21 4 pts Evaluate the integral using the given substitution. [x4(x5 - 3)# dx , u = x5 - 3 (x5 - 3)5 + C 0 1 (x5 - 3)5 + C 0 1 25X25 - 3 + C O1 15 ( X 5 - 3 ) 3 + C Question 22 4 pts Evaluate the integral using the given substitution.
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the following questions regarding the data. (a) Plot separate histograms for pulse2, weight and height. Are they symmetrically distributed? (b) Find the sample mean and sample standard deviation for pulse1. (c) Make a scatter plot between weight and height, grouped by sex. What pattern do you observe between weight and height

Scenario Pastas R Us, Inc. is a fast-casual restaurant chain specializing in noodle-based dishes, soups, and salads. Since its inception, the business development team has favored opening new restaurants in areas (within a 3-mile radius) that satisfy the following demographic conditions: ? Median age between 25 and 45 years old ? Household median
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A marketing company conducts a survey to examine people's interest in coffee and tea products. The company recruited a large random sample in the U.S. and asked each participant whether s/he liked coffee or tea better. They also recruited a large random sample in England and asked the participants the same question. Participants who did not like

Multivariate analysis of variance (MANOVA) is an extension of the univariateanalysis of varianceLinks to an external site.(ANOVA). In an ANOVA, we examine for statistical differences on one continuous dependent variable by an independent grouping variable. The MANOVA extends this analysis by considering multiple continuous dependent variables, and

14. [12 Points] Let C be the curve that consists of line segments from P(1, 0, 0) to Q(0, 1, 0), Q to R(0, 0, 2), and from R back to P (note that C is the boundary of a triangle in the plane 2x + 2y + z - 2 = 0). Use Stokes' Theorem to find, but don't evaluate, a double iterated integral in terms of x and y that gives the circulation of the vector
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thank you The mean height of women in a country (ages 20 - 29) is 64.2 inches. A random sample of 55 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 inches? Assume g- 2 58 The probability that the mean height for the sample is greater than 65 inches is (Round to four decimal
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The data below shows the price of houses in tempe. Interpret the following by creating a scatterplot and determining the bi variate regression equation. \f
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The idea of a set point in body weight is supported by what evidence? Most people's weight fluctuates around a nearly constant level People are usually hungrier during the day than at night. Most people eat more if a larger portion is put onto the plate People usually eat more when they are in a group than when eating alone

A researcher compared the average time (in minutes) spent exercising over a week for a sample of seniors in an assisted living facility with the average found from a national survey of those over 65 years of age. She reported (M - ) = -15.60, 95% CI [-10.32, -20.96]. You can interpret this as meaning ______

Calculate the Cronbach's Alpha for below data from a pilot study (if possible to use SmartPLS4 software) Variable 1: awareness of consequences calculate the Cronbach's Alpha (variable 1: awareness of consequences) Ques 1: I am aware that plastic consumption directly impacts human health Ques 2: I understand that indirect negative effects that oil

For which values of t > 1 does the expression t^t^t . . . make sense? Hint: fix t > 1 and define a0 = 1 and an+1 = t^an for n 0. The question asks when this sequence has a limit. (a) Show that an+1 > an for all n 1. What does this tell you? (b) When L = lim an exists, solve for t in terms of L. Use this to find the optimal upper bound for those

Let VSTSRS,e( y) be the variance of y under this erroneous allocation (where "e" in the subscript stands for erroneous). Find the relative loss of precision due to the use of error; i.e., find a formula for VSTSRS,e( y) VSTSRS,o( y) VSTSRS,o( y) where VSTSRS,o( y) is the variance of y under the optimal/Neyman allocation, and is given

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