A random sample of 490 observations produced a sample proportion equal to 0.38. Find the critical andobserved values of z for the following test of hypotheses using a = 0.1.Ho: p = 0.30 versus H₁: p = 0.30.Round your answers to two decimal places.Zcritical left =Zcritical rightZobserved

Given that n =490,P=0.30,P ^ = 0.38

Answered: A random sample of 490 observations…

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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Consider the following hypothesis test for the mean difference. (Give your answers correct to four decimal places.) (a) Determine the p-value for Ho: ?d = 0 and Ha: ?d > 0, with n = 24 and t = 1.81.(b) Determine the p-value for Ho: ?d = 0 and Ha: ?d ≠ 0, with n = 23 and t = -1.89.(c) Determine the p-value for Ho: ?d = 0 and Ha: ?d < 0, with n = 27 and t = -2.68.(d) Determine the p-value for Ho: ?d = 0.75 and Ha: ?d > 0.75, with n = 13 and t = 3.59
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Consider the following hypotheses: Hg: H 2 160 НА: и < 160 The population is normally distributed. A sample produces the following observations: 152 138 151 144 151 142 Conduct the test at the 1% level of significance. (You may find it useful to reference the appropriate table: z table or table) a. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.) Test statistic
Q10. Suppose the alternative hypothesis for a particular test is given by H1: p ≠ 0.50. What is theP-value for this test if test statistic z = 1.35.a. 0.2010b. 0.0885c. 0.9115d. 0.1770
Consider the following hypotheses. Ho: ps0.11 H₁: p>0.11 Given that p=0.12, n = 150, and a = 0.10, answer the following questions. a. What conclusion should be drawn? b. Determine the p-value for this test. a. Determine the critical value(s) of the test statistic. (Use a comma to separate answers as needed. Round to two decimal places as needed.) Calculate the test statistic. Zp= (Round to two decimal places as needed.) What conclusion should be drawn? OA. Reject Ho. There is sufficient evidence that p>0.11. OB. Reject Ho. There is insufficient evidence that p>0.11. OC. Do not reject Ho. There is sufficient evidence that p > 0.11. O D. Do not reject Ho. There is insufficient evidence that p > 0.11. b. p-value= (Round to three decimal places as needed.)
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Use the following information for questions 3 and 4. A study of class lengths at two schools was done using independent samples. 31 classes were chosen from each. The first school had a mean length of 50.1 minutes and a standard deviation of 1.6 minutes. The second school had a mean length of 48.9 and a standard deviation of 2.2 minutes. We want to determine at α = 0.01 if the means are different. Assume all test conditions are satisfied. What are the null and alternate hypotheses (write in equation/inequality form)?
Answer.

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