spx?ho MAT 120.006 DL Ward F17 Cheyenne Davis 11/16/17209 AM me Homework: Sectio

Question

spx?ho MAT 120.006 DL Ward F17 Cheyenne Davis 11/16/17209 AM me Homework: Section 9.2 Homework (Copy) Save Score: 022 of 1 pt 6 of 17 (13 c HW Score: 59.19%, 10 06 of 17 pts 9.2.17 Help s, is found to be 10 (a) Construct a 95% confidence nterval about ifthe sample size, n, is 25 (b) Construct a 95% confidence interval about ifthe sample size, ns21 (c)Construct a 70% coridence nterval about pf the sample size. n, is 25. Sci (d) Could we have computed the conidence intervalsin Click the icon to wew the table of areas under the ldstritution Lower bound©Upper bound (Use ascending order. Round to one decimal place as needed.)

Explanation / Answer

a)

b)

c)

d)

It could not be possible

n 25 CI 95% t-value 1.7109 xbar 110 std. dev. 10 SE = sigma/sqrt(n) 2 ME = z*SE 3.4218 Lower Limit = xbar - ME 106.5782 Upper Limit = xbar + ME 113.4218 CI 106.5782,113.4218

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