Find sample size for estimating the population mean

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Reference no: EM131762500

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

Reference no: EM131762500

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