Question: Hello, I am having problems figuring out how to solve this question. Your help is appreciated! Thank you. O A random sample of 20 items

Hello, I am having problems figuring out how to solve this question. Your help is appreciated! Thank you.

O A random sample of 20 items is drawn from a population whose standard deviation is unknown. The sample mean is x = 930 and the sample standard deviation is s = 5. Use Appendix D to find the values 5 of Student's t. points (a) Construct an interval estimate of / with 98% confidence. (Round your answers to 3 decimal places.) eBook The 98% confidence interval is from to (b) Construct an interval estimate of / with 98% confidence, assuming that s = 10. Ask (Round your answers to 3 decimal places.) The 98% confidence interval is from to Print (c) Construct an interval estimate of / with 98% confidence, assuming that s = 20. (Round your answers to 3 decimal places.) References The 98% confidence interval is from to (d) Describe how the confidence interval changes as s increases. O The interval stays the same as s increases. The interval gets wider as s increases. O The interval gets narrower as s increases

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