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Answer the following question concerning the descriptive statistics listed below

ID: 3289591 • Letter: A

Question

Answer the following question concerning the descriptive statistics listed below. These descriptive statistics were generated from a random sample of college students from USF’s College of Business. Answer the following questions about the amount of time they exercise per week and their GPAs.

          Exercise        GPA

N 22 23

Lo 92% CI 5.7500   3.0581

Mean 6.6000   3.2178

Up 92% CI 7.4500   3.3775

SD 2.0000   0.4173

Minimum   1.0000   2.4200

Median 6.0000   3.2300

Maximum 13.000   4.0000

In addition to needing a random sample, what other assumption is necessary for the interval to be valid?

The GPAs of all USF College of Business students need to be approximately normally distributed.

Explanation / Answer

For confidence interval assumptions are

Sample should be drawn randomly.

Each value should be sampled independently.

Data should be appropriately normally distributed.

So ans: A)

The GPAs of all USF College of Business students need to be approximately normally distributed.