15. Consider this upper-tail hypothesis test: Ho: p ≤ 0.70 against Ha: p > 0.70. If a randomsample of n = 800 provides a sample proportion of 0.76, what is the test statistic Z?2.1854782.3841583.9735973.377558A.B.C.D.

Given: H0:p≤0.70Ha:p>0.70 The sample size n is 800. The value of sample proportion is 0.76. The…

Answered: 15. Consider this upper-tail hypothesis…

MATLAB: An Introduction with Applications

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Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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1. Given a random variable X with a mean of 20, a variance of 9, and a random sample of n taken from the distribution, what sample size (n) is necessary in order that P(19.9 < X̄ < 20.1) = 0.95? A. 3,600 B. 4,000 C. 25.36% D. 0% E. 2.75; 0.10 F. Not among the choices G. 3.78; 0.15 H. 33.40% I. 8.38% PLEASE answer within the choices only
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1. Given n = 10, E, x? = 100, and = 1, compute the sample standard deviation s. 2. Given n = 100,E, 1? = 10000, and E, x; = 1000, compute the sample variance s². i3D1 i31
Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random D samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. n X GOPEER 5 Reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that men and women have the same mean BMI. c. Reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that men and women have the same mean BMI. Fail to reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that men and women have the same mean BMI. b. Construct a confidence interval suitable for testing the claim that males and females have the same mean BMI. 04-4³0 (Round to three decimal places as needed.) Male BM Female BMI H 41 27.2986 8.038297 1₂ 41 24.2674 4.558194
Suppose we are testing the null hypothesis H0: ? = 13 against the alternative Ha: ? > 13 from a normal population with known standard deviation ?=5. A sample of size 256 is taken. We use the usual z statistic as our test statistic. Using the sample, a z value of 2.636 is calculated. (Remember z has a standard normal distribution.)a) What is the p value for this test? b) Would the null value have been rejected if this was a 1% level test? YN c) Would the null value have been rejected if this was a 0.1% level test? YN d) What was the value of x calculated from our sample?
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A1,
Let?1, ?2,… , ?? be a random sample from the normal distribution with unknownmean,? and known variance, ?2. Using a sufficient statistic for ?, find the UMP test in the class of unbiased tests for testing,?0: ?= ?0 against ?1: ? ≠ ?0 at significance level ?.

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15. Consider this upper-tail hypothesis test: Ho: p ≤ 0.70 against H₁: p > 0.70. If a random sample of n = 800 provides a sample proportion of 0.76, what is the test statistic Z? 2.185478 2.384158 3.973597 3.377558 A. B. C.