Do shoppers at the mall spend more money on average the day after Thanksgiving compared to the day after Christmas? The 58 randomly surveyed shoppers on the day after Thanksgiving spent an average of $125. Their standard deviation was $45. The 49 randomly surveyed shoppers on the day after Christmas spent an average of $105. Their standard deviation was $47. What can be concluded at the a = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer ? Select an answer >

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Do shoppers at the mall spend more money on average
the day after Thanksgiving compared to the day after
Christmas? The 58 randomly surveyed shoppers on the
day after Thanksgiving spent an average of $125. Their
standard deviation was $45. The 49 randomly surveyed
shoppers on the day after Christmas spent an average
of $105. Their standard deviation was $47. What can be
concluded at the a = 0.01 level of significance?
For this study, we should use
Select an answer
a. The null and alternative hypotheses would be:
Но:
Select an answer >
Select an answer
Select an answer >
H1:
Select an answer >
Select an answer <
Select an answer <
b. The test statistic ? c
(please
show your answer to 3 decimal places.)
c. The p-value =
(Please show your
answer to 4 decimal places.)
Transcribed Image Text:Do shoppers at the mall spend more money on average the day after Thanksgiving compared to the day after Christmas? The 58 randomly surveyed shoppers on the day after Thanksgiving spent an average of $125. Their standard deviation was $45. The 49 randomly surveyed shoppers on the day after Christmas spent an average of $105. Their standard deviation was $47. What can be concluded at the a = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Но: Select an answer > Select an answer Select an answer > H1: Select an answer > Select an answer < Select an answer < b. The test statistic ? c (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.)
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