Suppose you perform the hypothesis test Ho: u = 80 versus H1:µ + 80. The population variance, o, isunknown. The sample size isn = 13. Assume the significance level is 0.09.Part 1:1) Should you use z or t to find the critical value?tPart 2 of 4Part 2:2) Choose the correct critical region.Reject Ho if t > taReject Ho if t <- t.Reject Ho if t > taReject Ho if t <Reject Ho if t > taReject Ho if t <- ta or t > taO Reject Ho if t 2 tęReject Ho if t s- ta or t > taO Reject Ho if t < – taO Reject Ho if t < -to or t > tReject Ho if t < – taO Reject Ho if t < - t; ort 2 tę

Given, Ho:μ=80H1:μ≠80 n = 13 a = 0.09

Answered: Suppose you perform the hypothesis test…

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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2
Test whether u, <µ2 at the a =0.05 level of significance for the sample data shown in the accompanying table. Assume that the populations are normally distributed. Click the icon to view the data table. Determine the null and alternative hypothesis for this test. O A. Ho:H1 = H2 Sample Data O B. Ho:H1
A sample of 51 stocks traded on the NYSE that day showed that 5 went up.You are conducting a study to see if the proportion of stocks that went up is is significantly less than 0.3. You use a significance level of α=0.02α=0.02.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 =
Test the claim about the population variance o at the level of significance a. Assume the population is normally distributed Claim: o? s 19.4; a = 0.10 Sample statistics: s? = 25.78, n= 51 Write the null and alternative hypotheses. Họ: o? Hai o? Find the critical value(s) and determine the rejection region. Select the correct and below and fill in the corresponding answer box(es) to complete your choice. (Round to three decimal places as needed.) O A. X? O B. x² OC. X: OD.
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You wish to test the following claim (HaHa) at a significance level of α=0.002α=0.002. Ho:μ1=μ2Ho:μ1=μ2 Ha:μ1>μ2Ha:μ1>μ2 You obtain the following two samples of data. 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? For this calculation, use the degrees of freedom reported from the technology you are using. (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null
If the sample data produce a test statistic (z-score) that is in the critical region, then which of the following is the appropriate conclusion for the test? O reject H₁ O fail to reject H₁ O fail to reject Ho O reject Ho
also option We should not reject the null hypothesis because t0>tα. So, at the 10% significance level, the data do not provide sufficient evidence to conclude that the average length of time between dentist visits is less than 193days.
We want to use a z-test to determine if the sample mean is greater than 20 at the alpha = 0.05. What is the critical value(s)?
If you collect data from a random sample of 10 students and we would like test for statistical significance at the 0.05 level, what critical r value must be obtained? O .602 O.632 0.708 O .576
Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses, level of significance a, and sample sizes n, and n. Assume that the samples are independent, normal, and random. Answer parts (a) and (b). Hg P2. a= 0.20, n, =6, n2 = 8 (a) Find the critical value(s) assuming that the population variances are equal. (Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate answers as needed.) (b) Find the critical value(s) assuming that the population variances are not equal. (Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate answers as needed.) Enter your answer in each of the answer boxes. DELL

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