The following eight observations were drawn from a normal population whose variance is 100: 12 8 22 15 30 6 29 58 Part A What is...

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Basic Math

The following eight observations were drawn from a normalpopulation whose variance is 100:

12

8

22

15

30

6

29

58

Part A

What is the standard error of the sample mean, based on theknown population variance? Give your answer to two decimal placesin the form x.xx

Standard error:

Part B

Find the lower and upper limits of a 90% confidence interval forthe population mean. Give your answer to two decimal places in theform xx.xx

Lower limit:

Upper limit:

Part C

True or false:

If the population was not normally distributed the confidenceinterval calculation above would not be valid. Answer by writing Tor F in the space provided.

Answer:

Answer & Explanation Solved by verified expert
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a 100 10 Standard Error SE n 10 8 354 b Sample Size n 8 Sample Mean x    See Answer
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