1. A random sample of 49 adults had a mean weight of 180 pounds with a standard deviation of 14. Give the following in

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1. A random sample of 49 adults had a mean weight of 180 pounds with a standard deviation of 14. Give the following information for a 95% confidence interval for the mean weight.

1. The value for Z or t and how you found it.
2. The confidence interval equation filled in.
3. The calculation of the Standard Error
4. The calculation of the Margin of Error
5. The upper and lower limits
6. An interpretation of the confidence interval
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2. A study is run to estimate the mean total cholesterol level in children 9-11 years of age. A sample of 169 participants is selected and their mean total cholesterol levels is 160.3. Assume the population standard deviation is 18.2. Give the following information for a 95% confidence interval for the mean cholesterol.
1. The value for Z or t and how you found it.
2. The confidence interval equation filled in.
3. The calculation of the Standard Error
4. The calculation of the Margin of Error
5. The upper and lower limits
6. An interpretation of the confidence interval
Upload a picture of your answer, showing all your work.

3. A local company started a new recreation program for its employees in the hope that a little recreation would improve an employees performance at work. To determine whether the high cost of the program is justified, the president of the company wishes to estimate the proportion of the employees who participate in the recreational activities. In a random sample of 200 employees, 60 were found to regularly participate in the recreation program. Give the following information for a 95% confidence interval for the proportion that participate in the recreational activities.

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