Do consumers spend more on a trip to Store A or Store B? Suppose researchers

interested in this question collected a systematic sample from Store 81 A customers

and 80 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 155.92 df. Test the null hypothesis at a=0.05.

Identify the null and alternative hypotheses. Choose the correct answer below.

Compute the test statistic. t = (Round to two decimal places as needed.)

Find the P-value. The P-value is . (Round to three decimal places as needed.)

State the conclusion. Choose the correct answer below

Store A: n=81 y=42 s=21

Store B: n=80 y=52 s=18