Question 5

VC Student A simple random sample of size 19 is drawn from a normal population whose standard deviation is o- 1.6. sources The sample mean is I - 27.5. hat a.) Construct a 92% confidence level for /. (Round answers to two decimal place.) margin of error: lower limit: upper limit: b.) If the population were not normally distributed, what conditions would need to be met? (Select all that apply.) the population needs to be normally distributed large enough sample size n the population needs to be uniformly distributed Do is unknown simple random sample Do is known systematic sampling Is the result in part a.) valid? ONo OYes