A Market Researcher Is Studying the Use of Coupons by Consumers

question 32

Multiple Choice

A market researcher is studying the use of coupons by consumers of varying ages.She classifies consumers into four age categories and counts the number of grocery store customers who use at least one coupon during check out.It is expected that data are uniformly distributed across the four age categories.The observed data results in frequencies of 22, 35, 32, and 21.Using $\alpha$ = .10, the appropriate decision is _______.

• A)do not reject the null hypothesis that the observed distribution is uniform
• B)do not reject the null hypothesis that the observed distribution is not uniform
• C)reject the null hypothesis that the observed distribution is uniform
• D)reject the null hypothesis that the observed distribution is not uniform
• E)do nothing

Calculate and interpret the test statistic for hypothesis tests involving a single population mean, a single population proportion, and the difference between two population means or proportions.

Determine sample sizes needed for estimating population parameters within a specified margin of error.

Formulate null and alternative hypotheses for testing differences between population means and proportions.

Understand and apply the concept of p-values in hypothesis testing to make informed decisions.

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