Hypothesis test It is often useful for companies to know who their customers are and how...

Hypothesis test

It is often useful for companies to know who their customers are and how they became customers. In a study of credit card use, random samples were drawn of cardholders who applied for the credit card and credit card holders who were contacted by telemarketers or by mail. The total purchases made by each last month were recorded. Can we conclude from these data that differences exist on average between the two types of customers? Test the claim at alpha= 0.05 The following table contains means and standard deviations for both samples. Assume unequal population variances.

employe sample mean standard deviation sample size

customers who

applied $130.93 $31.99 35

Customers

contacted $126.14 $26.00 30

HINT: use test statistic

Solutions

Expert Solution

From the above test, it is clear that no differences exist on average between the two types of customers.

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orchestra answered 11 months ago

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Hypothesis test It is often useful for companies to know who their customers are and how...

Solutions

Expert Solution

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