Q4. The following shows the expressions for computing two C.I. from a Normally distributed population. I. X+ 1.96 and II. X ± 2.57 Identify the Incorrect statement: A. I. and II. are confidence intervals for the sample mean, X B. I. is a 95% and II. is a 99% C.I. C. The mean of the Population is unknown. D. The variance of the Population is designated o. O A. A ОВ. В О С. С O D. D

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Q: 18 26 33 40 44 45 49 75 80 125

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A: Given: Sample mean (x¯) = 79  95% C.I. = (77, 81) n = 25

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A:

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Q: A: 12.7 13.4 12.6 12.1 11.6 11.1 14.2 15.1 B: 9.8 14.5 10.7 14.2 13.2 12.9 10.9 10.0 12.5 12.3 13.1…

A:

Q: In this problem, assume that the distribution of differences is approximately normal. Note: For…

A: A B Difference = A–B 12.5 9.6 2.9 13.2 14.3 -1.1 12.6 10.7 1.9 12.1…

Q: In this problem, assume that the distribution of differences is approximately normal. Note: For…

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Q: In this problem, assume that the distribution of differences is approximately normal. Note: For…

A: Given: A: {12.7, 13.2, 12.6, 12.1, 11.4, 11.1, 14.2, 15.1,12.5, 12.3, 13.1, 15.8, 10.3, 12.7, 11.1,…

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Q: In this problem, assume that the distribution of differences is approximately normal. Note: For…

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Q: In this problem, assume that the distribution of differences is approximately normal. Note: For…

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Q: n this problem, assume that the distribution of differences is approximately normal. Note: For…

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A: Testing a claim about the mean of the differences from dependent samples is given.