A researcher wants to test if the mean annual salary of all lawyers in a city is different from $110,000. A random sample of 51 lawyersselected from the city reveals a mean annual salary of $ 105000. Assume that o = $ 17300, and that the test is to be made at the 2%significance level.What are the critical values of z?O -1.28 and 1.28O -2.05 and 2.05O -1.645 and 1.645O -2.33 and 2.33What is the value of the test statistic, z, rounded to three decimal places?iWhat is the p-value for this hypothesis test, rounded to four decimal places?iShould you reject or fail to reject the null hypothesis in this test?

Given : Sample size (n) =51 Sample mean (X¯) = 105000 (in$) Population S.D (σ) = 17300 (in $)…

Answered: A researcher wants to test if the mean…

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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Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of measurements yield x = 99.37, y = 98.55, r=0.859, P-value = 0.000, and y = 10.94 +0.88x, where x represents the IQ score of the older child. Find the best predicted value of y given that the older child has an IQ of 105? Use a significance level of 0.05. 10CritPearson.pdf O A. 98.55 OB. 0.88 O C. 99.37 O D. 103.34
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