Question: Can you do it excel please, thank you. 6. A random sample of 75 measurements was selected from a population with unknown mean / and

Can you do it excel please, thank you. 6. A random

Can you do it excel please, thank you.

6. A random sample of 75 measurements was selected from a population with unknown mean / and standard deviation o. Calculate an approximate 95% confidence interval for / when a = 28 and $2 = 12. A. 2810.55 B. 2810.059 C. 1410.163 D. 1410.101 E. 2810.784 7. Refer to Question 6. If o2 is known to be 12, based on the same sample and this new information (62 = 12), we may construct a new approximate 95% confidence interval for u. What is the relationship between this new confidence interval and the one you calculated in Question 6? A. They are the same. B. They are different

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