The actual time it takes to cook a 25 pound turkey is a normal random variable with a mean of 5.4 hours and a standard deviation of 0.7 hours. What is the probability that a single randomly selected 25 pound turkey will take less than 5 hours to cook? Given that an average of 5.1 hours was found for a sample of 50 turkeys, calculate and interpret a 90% confidence interval for the average cooking time of a 25 pound turkey. Is the parameter that you are trying to estimate in (b) actually in the interval? What is the parameter? FORMULAS Sampling Distribution of Proportions
The actual time it takes to cook a 25 pound turkey is a normal random variable with a mean of 5.4 hours and a standard deviation of 0.7 hours. What is the probability that a single randomly selected 25 pound turkey will take less than 5 hours to cook? Given that an average of 5.1 hours was found for a sample of 50 turkeys, calculate and interpret a 90% confidence interval for the average cooking time of a 25 pound turkey. Is the parameter that you are trying to estimate in (b) actually in the interval? What is the parameter? FORMULAS Sampling Distribution of Proportions
test_3.docx