STAT Assignment - Show work
Question 1 - A sample of 150 has mean of 34124 and S.D. of population δ = 5400, using 99% conf. level (or 1% S: G. level) for making conf. int. for population mean. Find:
1) Marginal error
2) The Interval
For testing the claim that population mean is at-least 3500. Find:
3) Test Type & C.V. (Rejection Area)
4) Q.V. (Test Stat) And Decision.
Question 2 - A sample of 400 showed 76 ok, using 98% for making confidence interval of population Rate, Find:
5) Error
6) The interval
For testing the claim that population rate is 12%. Find
7) Test Type & C.V.
8) Q.V. & Decision
Question 3 - A sample of 25 has mean of 775 and S.D. of 230, using 2% level, for testing the claim that population mean is different from 850, Find:
9) Test Type & C.V.
10) Q.V. & Decision
For making conf. interval of population mean. Find:
11) Marginal error
12) The interval
Question 4 - A sample of 21 has mean of 74.07 and S.D. of 6. For making 95% conf. interval for population mean, Find:
13) Marginal error
14) The interval
For testing the claim that the population mean is greater than 72. Find:
15) C.V. & Test Type
16) Q.V. & Decision
Question 5 - 1. Find sample size for estimating the population mean, using: S.D. 0.2, error 2% conf. level of 98%.
2. Find sample size for estimating population rate, use error of 4.5%, α of 4%, p^ of 78%.
3. Find p-value for Question 1.
4. Find p-value for Question 2.
Attachment:- Assignment Questions.rar