Mr Stat is hoping to determine if he can predict the score of a test based...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Mr Stat is hoping to determine if he can predict the score of a test based on the number of hours a student used to prepare. The test scores of 6 randomly picked students and number of hours they prepared are as follows: Hours Score 10 91 4 10 74 69 86 95 87 a) What is the explanatory variable? b) What is the response variable? c) What is the regression equation? (Use y for the response variable and x for the explanatory variable.) d) What is the correlation coefficient, r? (Round answer to 3 decimal places.) e) What is the coefficient of determination, r? ? (Write as a decimal rounded to 3 decimal places.) Mr Stat is hoping to determine if he can predict the score of a test based on the number of hours a student used to prepare. The test scores of 6 randomly picked students and number of hours they prepared are as follows: Hours Score 10 91 4 10 74 69 86 95 87 a) What is the explanatory variable? b) What is the response variable? c) What is the regression equation? (Use y for the response variable and x for the explanatory variable.) d) What is the correlation coefficient, r? (Round answer to 3 decimal places.) e) What is the coefficient of determination, r? ? (Write as a decimal rounded to 3 decimal places.)
Expert Answer:
Answer rating: 100% (QA)
my answer is clearly worked out below X Y XY X Y 5 74 370 25 5476 10 ... View the full answer
Related Book For
Introductory Statistics Exploring The World Through Data
ISBN: 9780135163146
3rd Edition
Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan
Posted Date:
Students also viewed these accounting questions
-
A friend claims he can predict the suit of a card drawn from a standard deck of 52 cards. There are four suits and equal numbers of cards in each suit. The parameter, p, is the probability of...
-
A doctor says he can predict the height (in inches) of a child between 2 and 9 years old from the childs age (in years) by using the equation Predicted Height = 31.78 + 2.45 Age This tells us the...
-
The coefficient of determination for Armers regression equation for the maintenance activities is a. 34.469/49.515 b. .99724 c. Square root of .99724 d. (.99724) 2 e. None of the above (CMA Adapted)...
-
The registers values in AX and BX can be exchanged using stack operations that are: Select one: a. PUSH bx PUSH ax POP bx POP AX b. none C. PUSH ax PUSH bx POP ax POP bx d. PUSH ax POP ax PUSH bx POP...
-
When some people think about inventory theft, they imagine a shoplifter running out of a store with goods stuffed inside a jacket or bag. But thats not what the managers at the Famous Footwear store...
-
Product p = s t is formed from the two sets, in which s is a number from set Sand t is a number from set T. What is the probability that the product s t will be a positive number? S = {-5.-2,-1, 4}...
-
Kim Khan has been in business as a sole trader for the past 5 years. The comparative statements of financial position for the years 2024 and 2025 and a summarised statement of financial performance...
-
Massey Machine Shop is considering a four-year project to improve its production efficiency. Buying a new machine press for $640,000 is estimated to result in $270,000 in annual pretax cost savings....
-
The income statement disclosed the following items for the year: Depreciation expense Gain on disposal of equipment Net income $40,000 23,330 344,100 The changes in the current asset and liability...
-
Create a concept map that depicts your assumptions and findings of the theory-practice gap. You are a staff nurse working in an intensive care unit and assigned to care for a 75-year-old African...
-
Write a paper in which you need to Order the steps for creating a critical path analysis?
-
What are some things, or strategies, a person can do to develop a good speaking voice and make eye contact?
-
How can you use the internet effectively in your job search?
-
What are three ways to create a professional image with your letter?
-
What are two types of rsums, and when should you use each?
-
A student has written the following recommendation section for a report for a local restaurant. The restaurant is called the American Grill and specializes in burgers and fries. The restaurant is new...
-
Help please show all steps 1. Find the parametric (or symmetric) equations of the line passing through point \( P=(-2,1,3) \) that is perpendicular to the plane of equation \[ A x+B y+C Z=D \] where...
-
Suppose that you could invest in the following projects but have only $30,000 to invest. How would you make your decision and which projects would you invest in? Project Cost $ 8,000 11,000 9,000...
-
Use the data from exercise 11.8 and find Bonferroni-corrected intervals for all three comparisons assuming an overall confidence level of 95%, using an individual confidence level of 98.33%. Then...
-
Suppose you have four groups of data, and you want to do hypothesis tests (t-tests) to compare all possible pairs of means. a. How many pairwise comparisons can be done with four groups called A, B,...
-
Make a list of all possible outcomes for gender when a family has two children. Assume that the probability of having a boy is 0.50 and the probability of having a girl is also 0.50. Find the...
-
When a honeybee flies through the air, it develops a charge of +17 pC. How many electrons did it lose in the process of acquiring this charge?
-
Falling raindrops frequently develop electric charges. Does this create noticeable forces between the droplets? Suppose two 1.8 mg drops each have a charge of +25 pC; these are typical values. The...
-
A housefly walking across a surface may develop a significant electric charge through a process similar to frictional charging. Suppose a fly picks up a charge of +52 pC. How many electrons does it...
Study smarter with the SolutionInn App