The test statistic for the hypothesis test specifiedThe p-value for the hypothesis test specified The following table shows frequencies of highest educational attainment by region.No HSdegreeHS degree Some college Bachelor'sonlyPost-graduatedegreedegree25313566NorthSouthTotal191120265114122681018Total8794181

The table shows the frequencies of highest educational attainment by region.

Answered: The test statistic for the hypothesis…

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 are a research assistant at a zoo. The question of your study is "Has the proportion of baby zebras born in zoos has changed from 10%?". Your supervisor asks that you run a hypothesis test using a significance level of 0.05. From the study, you obtain a z-score of 0.788. What type of z test is appropriate? What is the ? Right, one-tailed test. = +1.645 Right, one-tailed test. = -1.645 Left, one-tailed test. = +1.645 Left, one-tailed test. = -1.645 Two-tailed test. = +1.645 and -1.645
Suppose that the random variable z has a standard normal distribution. Find each of the following z points, and use the normal table to find each z point. (Round 20.06 and - ²0.06 to 3 decimal places and other answers to 2 decimal places; Use the closest value of Z when there is not an exact match; if the Z values are equidistant, then average the two Z values. Negative values should be indicated by a minus sign.) a. 20.27 b. 70.32 C. 20.06 d. -70.27 e. -²0.32 f. -20.06
(EM) It is suggested that the proportion of students using the in-campus service (EEM) is higher than the proportion of department students using the in-campus service. Of the 260 randomly selected students from EM, 65 students and 35 of the 140 randomly selected students from EEM said that they used the in-campus service. at the meaning level of 0.05, which of the following is the p-value calculated in the hypothesis test for the accuracy of the proposed opinion?Answer options group A)0.50 B)0.0065 C)0.236 D)0.79
Dyson Company in Senai Johor plans to produce a new hair product known as Dyson Supersonic. The suppliers for the company are Company A and Company B found that 1% and 2% defective of 200 and 300 items respectively. Arrange appropriate hypothesis testing to investigate whether Company B are better by using 0.05 level of significance.
In a recent study it was found that of 450 physicians polled 162 were women and of 530 nurses polled 445 were women. Test the claim using the traditional method of hypothesis testing that the proportion of nurses who are women is greater than the proportion of physicians who are women. Assume a significance level of 0.01 Let p1=the proportion of nurses who are women Let p2=the proportion of physicians who are women a) What is the claim? p1 ">, < or =" p2 b) What is the Null Hypothesis? p1 ">, < or =" p2 c) What is the Alternative Hypothesis? p1 ">, < or =" p2 d) Which type of test will be used?
What type of hypothesis test should be performed? Ex: Left-tailed t-test, two-tailed t-test, two-tailed z-test, or right-tailed z-test P1 = Ex: 0.123 P2 = Ex: 0.123 P = Ex: 0.123 What is the test statistic? Ex: 0.12 P-value? Ex: 0.123 Does sufficient evidence exist to support the claim that the level of support differs between the two cities at the α=0.01 significance level? Ex: yes or no
b) What is the observed value of the test statistic for the appropriate hypothesis test? Give answer to 3 decimal places.c) What is the p-value associated to the observed test statistic you have just computed? Give answer to 3 decimal places.
The principal of a school would like to investigate whether more than 40% of the senior learners smoke. The study involved a random sample of 120 learners and 60 learners reported that they were smokers. Let: p= the population proportion of senior learners who smoke. p¯= the sample proportion of senior learners who smoke. (a) give the standard error of p¯ under the null Hypothesis (b) calculate the value of the test statistic (c) give the p-value
What type of hypothesis test should be performed? Ex: Left-tailed z-test, Left-tailed t-test, Right-tailed t-test, or a Two-tailed z-test. What is the test statistic? Ex: 0.12 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the two manufacturers is different at the a = 0.05 significance level? Ex: yes or no
For a one-tailed (upper tail) hypothesis test with a sample size of 26 and a .01 level of significance, the critical value of the test statistic t is
Consider a drug testing company that provides a test for marijuana usage. Among 253 tested subjects, results from 25 subjects were wrong (either a false positive or a false negative). Use a 0.01 significance level to test the claim that less than 10 percent of the test results are wrong. The test statistic for this hypothesis test is -0.06 (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. O A. Fail to reject Ho. There is sufficient evidence to warrant support of the claim that less than 10 percent of the test results are wrong. B. Reject Ho. There is not sufficient evidence to warrant support of the claim that less than 10 percent of the test results are wrong. OC. Reject Họ. There is sufficient evidence to warrant support of the claim that less than 10 percent of the test results are wrong. O D. Fail to reject Ho.…

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The test statistic for the hypothesis test specified The p-value for the hypothesis test specified