(b) Use Excel or Appendix D to find t025 for a two-tailed test at a = .051.025 Using the data given in the table below, answer the following questions. (Round your final answers to 3 decimal places.)Moviegoer Snack Spending (n = 10)Age (X)Spent (Y)ŵ74427ES68.49351339343718432.726.561.586.356.126.753.656.078.244.27Click here for the Excel Data File

Answered: (b) Use Excel or Appendix D to find…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Consider the highest daily snowfall accumulation in Montréal per winter season, measured at the Montréal Airport from 1964/65 to 2014/15. The measurements in cm are as follows: maxsnow ## [1] 15.2 25.4 32.8 14.5 23.6 37.8 43.2 22.9 20.3 21.1 25.7 24.6 25.9 22.5 32.8 ## (16] 19.6 11.0 18.2 10.8 21.3 22.0 13.6 21.8 21.0 21.2 12.2 20.2 17.2 40.0 27.8 ## [31] 13.2 20.8 21.4 23.6 35.8 33.9 31.0 18.8 15.8 18.8 17.2 41.2 35.2 31.8 23.8 ## [46] 29.8 20.4 16.0 45.6 20.8 20.0 (a) Is this data a realization of a random sample? Provide rationale for your answer (you may list pros and cons if you like). (b) Which population quantities (mean, variance, probabilities of certain events) would you like to use these data to estimate and why? (The answers to these questions are subjective).
For each of the following, indicate the scale of measurement that best describes the infor mation.a. In 2008, Dell Corporation had approximately 78,000 employees.b. USA Today reports that the previous day’s highest temperature in the United States was 105 degrees in Death Valley, California. Source: USA Today, June 19, 2009, p. 12A.c. An individual respondent answers “yes” when asked if TV contributes to violence in the United States.d. In a comparison test of family sedans, a magazine rates the Toyota Camry higher than the VW Passat.
Use the formula to find the standard error of the distribution of differences in sample means, I1 – X2. Samples of size 110 from Population 1 with mean 82 and standard deviation 14 and samples of size 80 from Population 2 with mean 76 and standard deviation 17 Round your answer for the standard error to two decimal places. standard error = i
A runner states that his average time for running a mile is 6.5 minutes. Given the following times from 8 recent mile runs, test the claim that his actual average is not what he states it to be at the a = 0.05 level of significance. 6.25 6.6 6.8 7.2 6.3 7.0 6.5 6.75
Calculate the z-value for a mean for the following p̂= 0.250p0 = 0.350n = 10
Determine the p value for each F test, reporting to 4 decimal places:A. F = 2.97 numerator n = 10 denominator n = 15 right tailed B. F = 3.32 numerator n = 7 denominator n = 13 two tailed
When is the unexplained variation (that is, error sum of squares) equal to 0? Choose the correct choice below. O A. When each value for the variable's observed value is lesser than the predicted value O B. When each value for the variable's observed value is equal to the opposite of the predicted value OC. When each value for the variable's observed value is equal to the predicted value O D. When each value for the variable's observed value is greater than the predicted value
Find the z value to the right o the mean so that 54.78% of the area under the distribution curve lies to the left of it.
Calculate the t-value for a mean for the following u – u0 = 15.00n = 25sx = 10.00

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(b) Use Excel or Appendix D to find t025 for a two-talled test at a = .05. 1.025