Please find attached 2 basic Statistics homework. Please complete the answers in word document.

Homework #02 Table of Content s Part 1 of 1 Question 1 of 13 2.0 Points Run \"Transform -- Recode into same variables\" to recode values of BMI that are greater than 100 as \"system missing\". Run \"Explore\" for BMI (or use Frequencies, under Descriptive and choose the statistics you want). Match the following statistics with their reported values. A. 37 B. 21.9 C. 83 D. 3.91 E. 20.1 F. 15.5 G. 10 H. 22.56 I. 24.3 J. 4.2 1. Mean 2. Standard deviation 3. Number of missing values 4. Max 5. Q1 6. Min 7. Valid sample size 8. Median 9. Q3 10. Interquartile Range Question 2 of 13 The median is less affected by extreme values in the data than is the mean. True False 1.0 Points Reset Selection Question 3 of 13 2.0 Points Which of the following statistical quantities are measures of central tendency? (Choose all the correct answers) A.Variance B.Mean C.MAD (Median Absolute Deviation) D.IQR E.Standard Deviation F.Median Question 4 of 13 2.0 Points Which of the following statistical quantities are measures of spread? (choose all the correct answers) A.Standard Deviation B.MAD C.Variance D.IQR E.Mean F.Median Question 5 of 13 1.0 Points At a smoking cessation center, three groups of smokers are interviewed. Each group has 6 people. The numbers of cigarettes smoked per day by the members of each group are given below: Group 1: 2, 4, 6, 8, 10, 12 Group 2: 6, 6, 7, 7, 8, 8 Group 3: 1, 1, 3, 11, 13, 13 In addition, the histogram of the number of cigarettes smoked per day for each group is presented below. The mean number of cigarettes smoked is 7 per day for every group. Reviewing these histograms, and the data above carefully, which group appears to have the greatest variability in terms of number of cigarettes smoked? A. Group 1 B. Group 2 C. Group 3 Reset Selection Question 6 of 13 0.5 Points Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. Calculate the variance of number of cigarettes smoked per day for each group using the data in question 2. (Note 1: you can either use a calculator and create a spreadsheet on scratch paper to help yourself, or you can use EXCEL to speed up the process) (Note 2: please use the formula in the image below. For these calculations, n=6 and x-bar = 7) What is the variance for group 1 (1 decimal place)? Question 7 of 13 0.5 Points Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. What is the standard deviation for group 1 (2 decimal places)? Question 8 of 13 0.5 Points Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. What is the variance for group 2 (1 decimal place)? Question 9 of 13 0.5 Points Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. What is the standard deviation for group 2 (2 decimal places)? Question 10 of 13 0.5 Points Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. What is the variance for group 3 (1 decimal place)? Question 11 of 13 0.5 Points Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. What is the standard deviation for group 3 (2 decimal places)? Question 12 of 13 1.0 Points Based on your variance calculations, which group has the largest variance? *note, does this match your response from question 6? A. Group 1 B. Group 2 C. Group 3 Reset Selection Question 13 of 13 1.0 Points The histograms on the links below give the distributions of BMI, "feeling thermometer" towards biostatistics, and height (based on a subset of the mini-survey in homework 0 conducted in a previous semester). The actual values of the skewness measure for these distributions are given below. Review these histograms carefully, and choose the best skewness measures to match each histogram. A. 1.384 B. -0.053 C. -0.604 1. Histogram 1 2. Histogram 2 3. Histogram 3 Save Exit Submit for Grading Name: _________________________ Score: ______ / ______ Homework #01 This homework assignment consists of 13 questions, each worth 1 point. Since all questions are either True-False, multiple choice, or fill-in-the-blank, you will know your score immediately after finishing it. To do this, go to the link "Tests Quizzes" on the left toolbar in NYU Classes, find the item named you're interested to review (e.g., "Homework #01"), and click on the "feedback" link. Once in, you'll be able to access the answer key and the instructor's feedback. Part 1 Please identify the types of variables among the choices below. Q1. Gender (male / female) A. Nominal B. Ordinal C. Quantitative Q2. Your height (in centimeters) A. Nominal B. Ordinal C. Quantitative Q3. Your height (in inches) A. Nominal B. Ordinal C. Quantitative Q4. Level of interest in Statistics (Very interested / Somewhat interested / Not interested) A. Quantitiave B. Ordinal C. Nominal The variable \"gender\" is also called dichotomous variable because it only takes two values. True False Assume that the prevalence of Alzheimer's disease in the population (per 100 population) is as follows: Age group Males Females 65-69 1.6 0.0 70-74 0.0 2.2 75-79 4.9 2.3 80-84 8.6 7.8 85+ 35.0 27.9 Suppose that a 77-year old man, a 76-year old woman, and an 82-year old woman are selected at random from this population. What is the probability that all three of the selected people will have Alzheimer's? A. 0 B. .00325 C. .000088 D. .15 Using the same three randomly selected people, what is the probability that at least one of the women has Alzheimer's disease? A. .099 B. 0 C. .101 D. .00179 Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. What is the probability that a 92 year old woman randomly selected from this population does NOT have Alzheimer's? Do not round your answer. ____ Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Assume that, independent of Alzheimer's, men aged 75 years old have a 25% chance of having had hip replacement surgery. What is the probability of a randomly selected 75 year old male not having Alzheimer's and having a hip replacement? Round to the nearest hundredth decimal. ____