Do consumers spend more on a trip to Store A or Store B? Suppose researchers interested in this question collected a systematic sample from 83 Store A customers and 81 Store B customers by asking customers for their purchase amount as they left the stores. The data collected is summarized by the accompanying table. Suppose researchers decide to test the hypothesis that the means are equal. The degrees of freedom formula gives 159.36 df. Test the null hypothesis at α=0.05. Store A Store B n 83 81 y 44 54 s 21 18 Identify the null and alternative hypotheses. Choose the correct answer below. A. H0: μA−μB≠0 HA: μA−μB=0 B. H0: μA−μB=0 HA: μA−μB≠0 C. H0: μA−μB=0 HA: μA−μB>0 D. H0: μA−μB=0 HA: μA−μB<0 Compute the test statistic. t=nothing (Round to two decimal places as needed.) Find the P-value. The P-value is nothing. (Round to three decimal places as needed.) State the conclusion. Choose the correct answer below. A. Reject the null hypothesis. There is sufficient evidence that the means are not equal. B. Reject the null hypothesis. There is not sufficient evidence that the means are not equal. C. Fail to reject the null hypothesis. There is not sufficient evidence that the means are not equal. D. Fail to reject the null hypothesis. There is sufficient evidence that the means are not equa
Do consumers spend more on a trip to Store A or Store B? Suppose researchers interested in this question collected a systematic sample from 83 Store A customers and 81 Store B customers by asking customers for their purchase amount as they left the stores. The data collected is summarized by the accompanying table. Suppose researchers decide to test the hypothesis that the means are equal. The degrees of freedom formula gives 159.36 df. Test the null hypothesis at α=0.05. Store A Store B n 83 81 y 44 54 s 21 18 Identify the null and alternative hypotheses. Choose the correct answer below. A. H0: μA−μB≠0 HA: μA−μB=0 B. H0: μA−μB=0 HA: μA−μB≠0 C. H0: μA−μB=0 HA: μA−μB>0 D. H0: μA−μB=0 HA: μA−μB<0 Compute the test statistic. t=nothing (Round to two decimal places as needed.) Find the P-value. The P-value is nothing. (Round to three decimal places as needed.) State the conclusion. Choose the correct answer below. A. Reject the null hypothesis. There is sufficient evidence that the means are not equal. B. Reject the null hypothesis. There is not sufficient evidence that the means are not equal. C. Fail to reject the null hypothesis. There is not sufficient evidence that the means are not equal. D. Fail to reject the null hypothesis. There is sufficient evidence that the means are not equa
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Question
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Do consumers spend more on a trip to Store A or Store B? Suppose researchers interested in this question collected a systematic sample from
83
Store A customers and
81
Store B customers by asking customers for their purchase amount as they left the stores. The data collected is summarized by the accompanying table. Suppose researchers decide to test the hypothesis that the means are equal. The degrees of freedom formula gives
159.36
df. Test the null hypothesis at
α=0.05.
|
|
Identify the null and alternative hypotheses. Choose the correct answer below.
H0:
μA−μB≠0HA:
μA−μB=0H0:
μA−μB=0HA:
μA−μB≠0H0:
μA−μB=0HA:
μA−μB>0H0:
μA−μB=0HA:
μA−μB<0Compute the test statistic.
t=nothing
(Round to two decimal places as needed.)
Find the P-value.
The P-value is
nothing.
(Round to three decimal places as needed.)
State the conclusion. Choose the correct answer below.
Reject
the null hypothesis. There
is
sufficient evidence that the means are not equal.Reject
the null hypothesis. There
is not
sufficient evidence that the means are not equal.Fail to reject
the null hypothesis. There
is not
sufficient evidence that the means are not equal.Fail to reject
the null hypothesis. There
is
sufficient evidence that the means are not equal.Expert Solution
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