Question
A random sample of 35 gas grills has a mean price of$631.20. Assume the population standard deviation is$56.50. You are given the sample mean and
A random sample of 35 gas grills has a mean price of$631.20. Assume the population standard deviation is$56.50.
You are given the sample mean and the population standard deviation. Use this information to complete the following.
a. Construct the90% confidence interval for the population mean.
b. Construct the95% confidence interval for the population mean.
c. Which interval iswider?
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Linear Algebra and Its Applications
Authors: David C. Lay
4th edition
321791541, 978-0321388834, 978-0321791542
