4. A claim is made that most adults would change their careers if they could. In a 840 randomly selected adults, 437 said that they would change their careers. U significance level to test the claim that most adults would change their career i a. Identify the null and alternate hypotheses. b. Determine the point estimate of the population. Round to two decima

4. A claim is made that most adults would change their careers if they could. In a 840 randomly selected adults, 437 said that they would change their careers. U significance level to test the claim that most adults would change their career i a. Identify the null and alternate hypotheses. b. Determine the point estimate of the population. Round to two decima

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. Ho: u 2 90 H:µ < 90 A sample of 100 is used and the population standard deviation is 12. Compute the p-value and state your conclusion for each of the following sample results. Use a = 0.01. (a) x = 88.5 Find the value of the test statistic. Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Do not reject Ho: There is sufficient evidence to conclude that u < 90. O Do not reject Ho. There is insufficient evidence to conclude that u < 90. O Reject Ho. There is insufficient evidence to conclude that µ < 90. O Reject Ho. There is sufficient evidence to conclude that u < 90. (b) x = 87 Find the value of the test statistic. Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Do not reject H. There is sufficient evidence to conclude that u < 90. O Do not reject Ho. There is insufficient…
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A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned. Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.” Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations. 1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.
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