b. The test statistic 0° c. The p-value = d. The p-value is ≤ ✓ O α (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question
Do shoppers at the mall spend the same amount of money on average the day after Thanksgiving compared
to the day after Christmas? The 59 randomly surveyed shoppers on the day after Thanksgiving spent an
average of $138. Their standard deviation was $42. The 57 randomly surveyed shoppers on the day after
Christmas spent an average of $113. Their standard deviation was $50. What can be concluded at the a =
0.05 level of significance?
For this study, we should use t-test for the difference between two independent population means
Ho:
४
8
४
a. The null and alternative hypotheses would be:
H₁: 1
४
४
μ1
b. The test statistic t
OB
c. The p-value
d. The p-value is ≤ ✓
OB
=
H
α
=
μ2
μ2
(please show your answer to 3 decimal places.)
(Please show your answer to 4 decimal places.)
Transcribed Image Text:Do shoppers at the mall spend the same amount of money on average the day after Thanksgiving compared to the day after Christmas? The 59 randomly surveyed shoppers on the day after Thanksgiving spent an average of $138. Their standard deviation was $42. The 57 randomly surveyed shoppers on the day after Christmas spent an average of $113. Their standard deviation was $50. What can be concluded at the a = 0.05 level of significance? For this study, we should use t-test for the difference between two independent population means Ho: ४ 8 ४ a. The null and alternative hypotheses would be: H₁: 1 ४ ४ μ1 b. The test statistic t OB c. The p-value d. The p-value is ≤ ✓ OB = H α = μ2 μ2 (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.)
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