6. A grocery store wants to know if a display of cranberries near the entrance to the store increases theproportion of shoppers who buy them. To determine this they first flip a coin each morning to decidewhether they place the cranberries near the entrance that day or locate them in their customary placein the produce section. Then they take a random sample of shoppers for several days and calculateP₂PL=1the proportion of shoppers who buy cranberries when they are near the store entrance, andthe proportion of shoppers who buy cranberries when they are in their customary spot. Which of thfollowing is a correct set of hypothesis for the appropriate test of significance?Ho: p₁-P₂ = 0; H. : P₁ - ₂ #0(a)(b)H₁: P₁-P₂ = 0; H. : P₁ P₂ > 0Ho: P.-P₂>0; H₂: P₁-P₁ = 0(d) H₁: P₁-P₁ = 0; H₂ : P₁ - P₂ #0H₂: P₁-P₂=0, H.: P.-P₂ > 0(e)

The objective is to set up that hypothesis for validating the claim that "the proportion of shoppers…

Answered: A grocery store wants to know if a…

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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The correlation between midterm and final grades for 300 students is 0.620. If 5 points are added to each midterm grade, the new r will be: a. 0.124 b. 0.57 c. 0.62 d. 0.744
find the p value and explain how it is done.
The time it takes an employee to package the components of a certain product is normally distributed with ? = 7.5 and ? = 1.5 minutes. As an incentive, management has decided to give a bonus to the 25% of employees who took the shortest amount of time to package the components. Find the amount of time taken to package the components that will indicate that an employee should get a bonus. (Round your answer to two decimal places.) An employee must package components in a time minutes.
Is the average time to complete an obstacle course longer when a patch is placed over the right eye than when a patch is placed over the left eye? Thirteen randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Time to Complete the Course Right 43 42 45 43 42 43|| 44 44 Left 42 42 47|| 41 42 43 46 || 44 Assume a Normal distribution. What can be concluded at the the a = 0.01 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v (please enter a decimal) H: Select an answer v Select an answer v| Select an answer v (Please enter a decimal) b. The test statistic ? v (please…
= 12,000 and p = 0.71. A random sample of 902 elements selected from this population gave p 0.61. Find For a population, N the sampling error. Enter the exact answer. sampling error =
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A jeep gets 53 highway miles per gallon. Howvever, an SUV believes gas mileage for their new line is much better. In order to test, they collect a random sample of 8 jeeps. The results of the 8 cars tested as as follows: 56, 51, 55, 54, 57, 48, 56, and 51. If you perform this test at a= .05 level, state the p-value and the conclusion of the test.
Carmen and Rosanna are two employees in an electronics store. The store manager has put an emphasis on increasing the number of applications for the store credit card. The manager randomly selected 24 weeks for each employee and recorded the number of completed applications for each week, which is provided in the samples below. Each employee completed 21 applications in one of the weeks selected. Use Excel to calculate each employee's z-score for completing 21 applications. Round your answers to two decimal places. Carmen Rosanna11 56 1115 613 185 1114 1416 521 208 1110 97 1416 1513 1310 619 2118 95 1817 310 126 1712 1214 419 1017 8
Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 95% confidence that your error is no more than 0.03.
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