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Chapter 11: Q. 45 (page 657)

A market researcher wants to see if two different stores have the same distribution of sales throughout the year. What type of test should he use?

Short Answer

Expert verified

The market researcher will use the homogeneity test.

Step by step solution

01

Concept introduction

A hypothesis is a reasonable assumption for a behaviour (plural hypotheses). The scholarly approach involves that an assumption be validated before it can be deemed a factual prediction. Technical speculations are mainly influenced by past results that cannot be fully addressed by established scientific findings.

02

Explanation

It could be used to see if two populations have the very same distribution or not.

The test statistics for a testing of homogeneity and a testing of independence are generated using the same method.

The independence study checks at whether two variables are mutually excluded.

The market researcher is determining whether or not two stores have the same sales distribution throughout the year. As a result, the market researcher will use the homogeneity test.

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The average waiting time in a doctor鈥檚 office varies. The standard deviation of waiting times in a doctor鈥檚 office is 3.4 minutes. A random sample of 30 patients in the doctor鈥檚 office has a standard deviation of waiting times of 4.1 minutes. One doctor believes the variance of waiting times is greater than originally thought.

What type of test should be used?

A factory manager needs to understand how many products are defective versus how many are produced. The number of expected defects is listed in Table 11.5.

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OpenConscientiousExtrovertAgreeableNeuroticBusiness4152466158Social Science7275638065

Read the statement and decide whether it is true or false.

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