OpenStax, Introductory Statistics 2e §8.2 A Single Population Mean using the Student t Distribution · Example 1 · Statistics · Confidence intervals

A Single Population Mean using the Student t Distribution · Example 1

Suppose you do a study of acupuncture to determine how effective it is in relieving pain. You measure sensory rates for 15 subjects with the results given. Use the sample data to construct a 95% confidence interval for the mean sensory rate for the population (assumed normal) from which you took the data.
The solution is shown step-by-step and by using the TI-83, 83+, or 84+ calculators.

• 8.6
• 9.4
• 7.9
• 6.8
• 8.3
• 7.3
• 9.2
• 9.6
• 8.7
• 11.4
• 10.3
• 5.4
• 8.1
• 5.5
• 6.9

~5 minWritten answer · compare with the solution

OpenStax, Introductory Statistics 2e · §8.2 A Single Population Mean using the Student t Distribution · Example 1

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