A major retail clothing store is interested in estimating the difference in mean monthly purchases by customers who use the​ store’s in-hous

Question

A major retail clothing store is interested in estimating the difference in mean monthly purchases by customers who use the​ store’s in-house credit card versus using a​ Visa, Mastercard, or one of the other major credit cards. To do​ this, it has randomly selected a sample of customers who have made one or more purchases with each of the types of credit cards. The following represents the results of the sampling. ​In-House Credit Card National Credit Card Sample​ Size: 86 113 Mean Monthly​ Purchases: ​$45.67 ​$39.87 Standard​ Deviation: ​$10.90 ​$12.47 Suppose that the managers wished to test whether there is a statistical difference in the mean monthly purchases by customers using the two types of credit​ cards, using a significance level of​ 0.05, what is the value of the test statistic assuming the standard deviations are​ known? Round to two decimal places.

in progress 0
Amelia 1 month 2021-10-22T09:20:41+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-10-22T09:21:52+00:00

    I don’t know but make sure to re-read and get the result equal to 100

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )