Find the p-value for the following scenarios. Round your answers to 4 decimals.1) Right-tailed test; test statistic value t– 2.94; degrees of freedom df = 8; p-value =%3D2) Right-tailed test; test statistic value t1.01; degrees of freedom df = 5; p-value3) Left-tailed test; test statistic valuet =0.8; degrees of freedom df17; p-value

Answered: Find the p-value for the following…

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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Directions: Answer the following. 1. What are the steps in testing hypothesis for the population mean? 2. In a right-tailed test, what will you da if the computed value is greater than the critical value? 3. In a left-tailed test, what will you do if the computed value is less than the critical value? 4. What does it mean if you reject the null hypothesis? 5. What do you mean if you fail to reject the null hypothesis?
Psychology experiments sometimes involve testing the ability of rats to navigate a maze. One researcher needs a maze that will take rats, on average, less than a minute to solve. The data below (image provided) gives the completion times for this maze for 20 randomly sampled rats. Will the maze fulfill the researcher’s time requirement? Use a significance level of ? = 0.05. What are the hypotheses. What are the test statistic and p-value. What is the full conclusion for this test in the context of the problem.
Based from the photo, This is the step1, so step 2 and step 3 and Step 4 must be answered. (Step 2: Test Statistic -Pearson's r correlation coefficient AND Step 3: Critical Values, and Step 4: Solve For the test stat) so based it from the photo. The table shows the number of hours spend by 30 students in studing and their test scores. Solve for the Pearson’s r and interpret the results. Use 5% significance level. Step 1: Null and Alternative Hypothesis Ho: r = 0; There is no significant relationship between the number of hours spent studying and the students test scores. Ha: r ≠ 0; There is a significant relationship between the number of hours spent studying and the students test scores. Step 2: Test Statistic -Pearson's r correlation coefficient Step 3: Critical Values, Step 4: Solve For the test stat PLEASE SHOW ME COMPLETE SOLUTIONS AND CORRECT ANSWERS THANK YOU!! It was a pleasure to me. HIGHLIGHT STEP 4: (step 4 is must)!!
GSS 2018 respondents were asked to rate their level of agreement to the statement, “Differences in income in America are too large.” Responses were measured on a 5-point scale: 1 = strongly agree, 2 = agree, 3 = neutral, 4 = disagree, and 5 = strongly disagree. Strong Democrats had an average score of 1.69 (s = 1.04, N = 86) while strong Republicans had an average score of 2.11 (s = 1.05, N = 67). The estimated standard error of the difference between meansis 0.17. What is the appropriate test statistic? Why? Test the null hypothesis with a one-tailed test (strong Democrats are more likely to agree with the statement than strong Republicans); α = .05. What do you conclude about the difference in attitudes for these two political groups? If you conducted a two-tailed test with α = .05, would your decision have been different?
(please solve within tada minutes I will give thumbs up)
Using image attached A. Fill in blanks B. What are the null and alternative hypothesis? C. Find the test statistic, z0 D. Find the P-Value
Describe the data that are collected for a repeated measures t-test and the hypotheses that the test evaluates.
Our professor wants us to calculate the test statistic and p-value by hand. The test statistic is correct. I can't get the p-value to save my life. Do you know what I am doing wrong?? (All of these p-value answers are incorrect: 0.25, .1230, 2.32, .0232, .02, and .01) An article published in the Washington Post claims that 45 percent of all Americans have brown eyes. A random sample of ?=78 college students found 30 who had brown eyes.Consider testing ?0:?=.45??:?≠.45 (a) The test statistic is ? = -1.16 (b) P-value =
You want to test whether a blood pressure medication actually works. You give it to a group of n = 30 patients. You get another group of n=25 patients and give them a placebo. You want to compare the two groups to see whether they have a mean difference in blood pressure. What kind of hypothesis test should you do? One-Sample z-test Independent-Samples t-test Related-Samples t-test One-Sample t-test
In a hypothesis test, H0 is p < 0.45 and Ha is p > 0.45. If the test statistic is z = 1.68, what is the P-value? Draw picture and give P-value only. Do not do rest of testing.
Only solve 18 question
You are testing the claim that the mean GPA of night students is different than the mean GPA of day students. You sample 60 night students, and the sample mean GPA is 2.63 with a standard deviation of 0.56 You sample 45 day students, and the sample mean GPA is 2.62 with a standard deviation of 0.98 Calculate the test statistic, rounded to 2 decimal places

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