5. An hypothesis test is of the form Ho : µ1 – Hz = 0 vs Ha : µ1 – H2 < 0. Both populations are assumed normalwith equal variance and samples are assumed independent. We draw 21 observations for the first sample and 37observations for the second sample. State the distribution of the test statistic for this test.t-distribution with 60 degrees of freedomt-distribution with 58 degrees of freedom)Normal distribution with 57 degrees of freedomO t-distribution with 56 degrees of freedom

Here Given A hypothesis test is of the form H0:μ1-μ2=0, Vs Ha: H0:μ1-μ2 <0 We have to state…

Answered: 5. An hypothesis test is of the form Ho…

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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Women are recommended to consume 1790 calories per day. You suspect that the average calorie intake is larger for women at your college. The data for the 11 women who participated in the study is shown below: 2035, 2079, 1842, 1923, 1701, 1889, 1691, 1731, 1730, 2006, 1954 Assuming that the distribution is normal, what can be concluded at the αα = 0.01 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion The null and alternative hypotheses would be: H0:H0: ? p μ Select an answer = > < ≠ H1:H1: ? μ p Select an answer ≠ < = > The test statistic ? t z = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is ? ≤ > αα Based on this, we should Select an answer accept fail to reject reject the null hypothesis. Thus, the final conclusion is that ... The data suggest that the population mean calorie…
Two independent samples from normal distributions are being compared. The sample data are summarized in the table. Population Populationmean Samplesize Samplemean Sample standarddeviation Standard errorestimate 1 ?1 ?1=16 x¯1=15.3 s1=2.010 SE1=0.503 2 ?2 ?2=14 x¯2=13.8 s2=2.330 SE2=0.623 The estimated standard error of the difference of the two sample means is SE=0.800. Compute the value of the two-sample ?t‑statistic used to test the null hypothesis ?0:?1=?2H0:μ1=μ2. Please give your answer precise to three decimal places.
Use the normal distribution and the given sample results to complete the test of the given hypotheses. Assume the results come from a random sample and use a 5 % significance level. Test Ho : p = 0.3 vs Ha : p < 0.3 using the sample results p = 0.19 with n = 202 Round your answer for the test statistic to two decimal places, and your answer for the p-value to three decimal places. test statistic = i p-value = i
I'm stuck on D because I'm having a hard time with P-value.
My answer is as follows: T critical = 2.70 T value= 7.775 P< a (0.01) Therefore we reject the null. Is this correct?
Use the normal distribution and the given sample results to complete the test of the given hypotheses. Assume the results come from a random sample and use a 5 % significance level. Test Ho : p = 0.3 vs Ha : p < 0.3 using the sample results p = 0.23 withn = 202 Round your answer for the test statistic to two decimal places, and your answer for the p-value to three decimal places. test statistic = i ! p-value = i
17. Question content area top Part 1 Use a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ=52,400; α=0.10 Sample statistics: x=53,647, s=3000, n=20 LOADING... Click the icon to view the t-distribution table. Question content area bottom Part 1 What are the null and alternative hypotheses? Choose the correct answer below. A. H0: μ≠52,400 Ha: μ=52,400 B. H0: μ≥52,400 Ha: μ<52,400 C. H0: μ=52,400 Ha: μ≠52,400 D. H0: μ≤52,400 Ha: μ>52,400 Part 2 What is the value of the standardized test statistic? The standardized test statistic is enter your response here . (Round to two decimal places as needed.) Part 3 What is(are) the critical value(s)? The critical value(s) is(are) enter your response here . (Round to three decimal places as needed. Use…
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