simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 115, and the sample standard deviation, s, is found to be Construct a 96% confidence interval about μ if the sample size, n, is 27. ) Construct a 96% confidence interval about u if the sample size, n, is 17. Construct a 95% confidence interval about μ if the sample size, n, is 27. Could we have computed the confidence intervals in parts (a)-(c) if the population had not been normally distributed? Click the icon to view the table of areas under the t-distribution. Construct a 96% confidence interval about μ if the sample size, n, is 27. wer bound:: Upper bound: se ascending order. Round to one decimal place as needed.)

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### Confidence Interval Calculation for Normally Distributed Population

A simple random sample of size \( n \) is drawn from a population that is normally distributed. The sample mean, \( \bar{x} \), is found to be 115, and the sample standard deviation, \( s \), is 10.

#### Tasks:

**(a)** Construct a 96% confidence interval about the population mean \( \mu \) if the sample size, \( n \), is 27.

**(b)** Construct a 96% confidence interval about \( \mu \) if the sample size, \( n \), is 17.

**(c)** Construct a 95% confidence interval about \( \mu \) if the sample size, \( n \), is 27.

**(d)** Could we have computed the confidence intervals in parts (a)-(c) if the population had not been normally distributed?

*Click the icon to view the table of areas under the t-distribution.*

---

#### Calculation Box

**(a)** Construct a 96% confidence interval about \( \mu \) if the sample size, \( n \), is 27.

- Lower bound: [Input Box]
- Upper bound: [Input Box]

*(Use ascending order. Round to one decimal place as needed.)*
Transcribed Image Text:### Confidence Interval Calculation for Normally Distributed Population A simple random sample of size \( n \) is drawn from a population that is normally distributed. The sample mean, \( \bar{x} \), is found to be 115, and the sample standard deviation, \( s \), is 10. #### Tasks: **(a)** Construct a 96% confidence interval about the population mean \( \mu \) if the sample size, \( n \), is 27. **(b)** Construct a 96% confidence interval about \( \mu \) if the sample size, \( n \), is 17. **(c)** Construct a 95% confidence interval about \( \mu \) if the sample size, \( n \), is 27. **(d)** Could we have computed the confidence intervals in parts (a)-(c) if the population had not been normally distributed? *Click the icon to view the table of areas under the t-distribution.* --- #### Calculation Box **(a)** Construct a 96% confidence interval about \( \mu \) if the sample size, \( n \), is 27. - Lower bound: [Input Box] - Upper bound: [Input Box] *(Use ascending order. Round to one decimal place as needed.)*
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