The null and alternative hypotheses for a hypothesis test of the difference in twopopulation proportions are:Null Hypothesis: p1=p2Alternative Hypothesis: P1>p2Notice that the alternative hypothesis is a one-tailed test. Suppose proportions_ztestmethod from statsmodels is used to perform the test and the output is (1.13, 0.263).What is the P-value for this hypothesis test? Select one.1.13-1.130.13150.263

Answered: The null and alternative hypotheses for…

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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test statistic 0.572 and p-value of 0.2837 are INCORRECT
☐True ☐FalseThe null hypothesis in a paired-samples t-test is H0: ???????????=0.
The 2x5 table below shows the results of a random sample of 2200 adults classified by 2 variables: gender and preferred way to eat ice cream. At the 5% significance level, test the claim that the two variables are independent. Your solution must include the claim, the null and alternate hypothesis, your test statistic, the degrees of freedom, the p-value, your decision, and the interpretation of your decision as it relates to the claim. Calculate the chi-square test statistic by hand and show all work
What is the test statistic?(3 decimal places) What is the critical value(s)?(3 decimal places) Reject or don’t reject?
The test statistic in a right-tailed test is z=−1.83. Determine the P-value and decide whether, at the 5% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. The P-value is _____________ (Round to three decimal places as needed.) This P-value _____________________ (does not provide or provides) sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because it is_____________ (greater than or less than) the significance level.
Opposing a random sample of size and equal 16A sample average of 185 it is observed the P value of the sample statistic is
You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly more than 0.16. You use a significance level of a = 0.01. Но:р — 0.16 H1:p > 0.16 You obtain a sample of size n = 621 in which there are 104 successes. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a greater than a This test statistic leads to a decision to... O reject the null O accept the null Ofail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the proportion of voters who prefer Candidate A is more than 0.16. O There is not sufficient evidence to warrant rejection of the claim that the proportion of voters who prefer Candidate A is more than 0.16. O The sample data support the claim that the…
n engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 160 engines and the mean pressure was 7.7 pounds/square inch (psi). Assume the population variance is 0.36. If the valve was designed to produce a mean pressure of 7.8 psi, is there sufficient evidence at the 0.01 level that the valve performs below the specifications? Step 2 of 3: Find the P-value for the hypothesis test. Round your answer to four decimal places.
-what kinds of questions can we test with a t test? -How do you know if two samples are statistically different from each other? In other words, what statistics will tell you if your results are statistically significant?
following hypothesis test for matched data: Но : ld H1 : Hd + 0 For a sample of 18, it was found that d = 2.9 and sa = 3.56. Determine each of the following: The value of the test statistic: For a = 0.025, the final conclusion is O A. There is enough evidence to say that Hd = 0 B. There is enough evidence to say that ud # 0 C. There is not enough evidence to say that ld = 0 D. There is not enough evidence to say that Hd + 0.
Please help me find the standardized test statistic and the P-value

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