Chapter 14 part 1 A 4556 B 11584862 C 2941130789 D 324325643

Chapter 14 part 1

A. (45,56)

B. (11.58,48.62)

C. (29.411,30.789)

D. (32.432,56.431)

2. Suppose the mean of a given data set is 559.4 with a margin of error of 62.3.

Solution

1 c

2

3 1) Confidence interval is 681.8 +/- 54.3
2) Confidence interval is (584.9 , 802.3)
lower bound = 693.6 - 108.7
upper bound = 693.6 + 108.7
3) Confidence interval is (353.1 , 414.7)
4) Margin of error = z-score for 90% confidence*standard deviation/sqrt sample size
= 1.645*9.7/sqrt 36
= 2.66

5 Im assuming its just a typo? Is the 0.826 supposed to be 0.846 or where did you get 0.826 from?