Using the table below, determine the critical value or values for a hypothesis test for a proportion at the 2.5% significancelevel if the hypothesis test is left-tailed (Ha : P < po)Round your answer to 3 decimal placesZ0.10 Z0.05Z0.025 Z0.0 Z0.0051.282 1.645 1.960 2.326 2.576Provide your answer below:CriticalValue =-

Given for a hypothesis test level of significance = 0.025 and it is one tail left test.Below are the…

Answered: Using the table below, determine the…

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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Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores: Grades 74.4 96 83.2 65 63.9 64.3 74.4 69 68.4 88 Test grades are believed to be normally distributed.Use a significance level of 5%. State the alternative hypothesis: HA:HA: μ>65μ>65 μ<65μ<65 μ≠65μ≠65 State the mean of the sample: (Round to two decimal places.) State the standard error of the sample means: (Round to four decimal places.) State the test statistic: t=t= (Round to four decimal places.) State the p-value: (Round to four decimal places.) Decision: Reject the null hypothesis. Do not reject the null hypothesis.
The Open Syllabus Project What statistical analysis could be used to determine of the mean percentage of psychology readings assigned in the Midwest was significantly different than in all of the United States? Single-sample t-test In which of the following four categories does this situation fall? a. only scale variables b. nominal independent variables, scale dependent variable c. only nominal variables d. any ordinal variables (that cannot be treated as a nominal)
What are the degrees of freedom and critical values for independent samples t-tests with a = 0.05; two-tailed; n =10, n2= 10 %3D Please write your critical value answer in the following format: (for a 2 tailed test) 1.234 and-1.234 (for a one tailed test) 1.234 or -1.234
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Using the results obtained for a study on website development below, how would we interpret the results of this hypothesis test? The claim is the percent of customers who abandon a web page due to long load times is different from 34%. The significance level is 0.10. The test statistic is 2.50. Select the correct answer below: Reject H0. There is strong evidence to conclude that the percent of customers who abandon a web page due to long load times is greater than 34%. Reject H0. There is NOT strong evidence to conclude that the percentage of customers who abandon a web page due to long load times is greater than 34%. Fail to reject H0. There is strong evidence to conclude that the percent of customers who abandon a web page due to long load times is greater than 34%. Fail to reject H0. There is NOT strong evidence to conclude that the percentage of customers who abandon a web page due to long load times is greater than 34%.
help me find test statistics, critical values and rejection region
Using Excel, conduct a t-test (at the alpha = 0.05 significance level) on whether the mean of X1 is equal to 100. What do you conclude from this sample data? Is the population mean equal to 100?
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Identify test statistic Identify P value Identify a conclusion Fail to reject H0... Reject H0....
You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly more than 0.52. You use a significance level of a = 0.05. Ho:p = 0.52 H1:p> 0.52 You obtain a sample of size n = 556 in which there are 308 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... less than (or equal to) a greater than a This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that. There is sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their prostate examined is more than 0.52. There is not sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their prostate examined is more…
How is the sample size related to the margin of error and confidence level? What isthe impact of S.D. on sample size? Comments with justification. Also fill in theblanks showing necessary calculations in each case: Margin of error S .D. Confidence Level Sample Size 0.4274 5.33 95% ________ 0.8548. 4.79 ___________. 209 0.7948 ______ 90% 249 0.2129 5.79 __________. 2841 __________. 2.54 90% 3720
Using the t-table, find the critical value for a left-tailed test with a significance level of 10% and a sample size of 25.

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