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# Samples of Standard Normal Random Variables Use a computer to generate a sample of 50 standard normal random variables. Generate a histogram for your...

**Sample Proportion Hypothesis Testing **

Individuals are often classified as being morbidly obese if they are 100 pounds overweight. Imagine that the population proportion of morbidly obese individuals in the country as a whole is 2%.

1. How large does n need to be to use the standard normal distribution? 2. You obtain information on 500 individuals from a town and calculate the sample proportion to be 4%. 3. Calculate a 90% confidence interval for sample proportion? 4. Does the confidence interval include the population proportion? 5. What is the probability that the sample proportion is equal to the population proportion?