State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain.(a) t= 1.584(b) t=0(c) t= - 1.526(d) t= - 1.604to = - 1.558(a) For t= 1.584, should you reject or fail to reject the null hypothesis?O A. Fail to reject Ho, because t> - 1.558.O B. Reject Ho, because t> - 1.558.O C. Reject Ho, because t< - 1.558.O D. Fail to reject H,, because t< - 1.558.(b) For t= 0, should you reject or fail to reject the null hypothesis?O A. Reject Ho, because t> - 1.558.O B. Fail to reject Ho, because t< - 1.558.O C. Reject Ho, because t< - 1.558.O D. Fail to reject Ho, because t> - 1.558.(c) For t= - 1.526, should you reject or fail to reject the null hypothesis?O A. Reject Ho, because t< - 1.558O B. Reject Ha, because t> - 1.558.O C. Fail to reject Ho, because t> - 1.558.O D. Fail to reject Hn, because t< - 1.558.

According to the given information in this question a) t = 1.584 and the critical value is given…

Answered: State whether the standardized 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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The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitudes, and study habits of college students. Scores range from 0 to 200 and follow, approximately, a Normal distribution, with mean of 110 and standard deviation o = 20. You suspect that incoming freshman have a mean u that is different from 110, because they are often excited yet anxious about entering college. To verify your suspicion, you test the hypotheses Ho: u= 110, H: u+110. You give the SSHA to 50 students who are incoming freshman and find their mean score. D. The P-value of the test of the null hypothesis is: the probability, assuming the null hypothesis is false, that the test statistic will take a value at least as extreme as that actually observed. O the probability, assuming the null hypothesis is true, that the test statistic will take a value at least as extreme as that actually observed. temms ofuse contact us help about us cafeers 856 AM 12/19/2020 a hp prt sc…
Need the H0 and H1 values. Can use != for not equal to.
(c) Fort= 1.653, should you reject or fail to reject the null hypothesis?
You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. Ho: u 2 90 H:µ < 90 A sample of 100 is used and the population standard deviation is 12. Compute the p-value and state your conclusion for each of the following sample results. Use a = 0.01. (a) x = 88.5 Find the value of the test statistic. Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Do not reject Ho: There is sufficient evidence to conclude that u < 90. O Do not reject Ho. There is insufficient evidence to conclude that u < 90. O Reject Ho. There is insufficient evidence to conclude that µ < 90. O Reject Ho. There is sufficient evidence to conclude that u < 90. (b) x = 87 Find the value of the test statistic. Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Do not reject H. There is sufficient evidence to conclude that u < 90. O Do not reject Ho. There is insufficient…
The results section of an article reports the following “IQ scores of the sample differ from the population mean of 100, single sample t (19) = 2.80, p < .05, two tail”. Based on this result, how many people were included in the sample? Select one: 20 21 19 38
State whether the standardized test statistic z indicates that you should reject the null hypothesis. (a) z= 1.225 (b) z = - 1.329 (c) z = - 1.517 (d) z = - 1.158 2 =-1285 (a) For z= 1.225, should you reject or fail to reject the null hypothesis? O A. Fail to reject H, because z - 1.285. O C. Fail to reject H, because z> - 1.285. O D. Reject H, because z<- 1.285.
What is the appropriate conclusion for this test? (Do not reject OR reject) H₀ and conclude that there (is or is not) sufficient evidence that mice with an average life span of 32 months will live to be (less or greater) than 42 months old when 40% of the calories in their diet are replaced by vitamins and protein.
Which of the following results in a null hypothesis μ≤7 and alternative hypothesis μ>7? A study wants to show that the mean number of hours of sleep the average person gets each day is at least 7. A study wants to show that the mean number of hours of sleep the average person gets each day is 7. A study wants to show that the mean number of hours of sleep the average person gets each day is more than 7. A study wants to show that the mean number of hours of sleep the average person gets each day is at most 7.
Consider the following data on price ($) and the overall score for six stereo headphones tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). Brand Price ($) Score A 180 76 В 150 69 C 95 63 70 54 E 70 38 F 35 24 (a) The estimated regression equation for this data is ŷ 21.258 + 0.327x, where x = price ($) and y = overall score. Does the t test indicate a significant relationship between price and the overall score? Use a = 0.05. State the null and alternative hypotheses. Ho: B1 + 0 Ha: B1 Ho: B1 Ha: B1 + 0 = 0 O Ho: Po = 0 Ha: Bo + 0 O Ho: B1 2 0 Ha: B1 < 0 O Ho: Po + 0 Hai B = 0 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value
28
To test whether there is a significant difference in the mean weekly earnings between males and females (i.e., whether gender affects mean earnings), you regress weekly earnings on a constant and a binary variable, which takes on a value of 1 for females and is 0 otherwise. The results were (standard errors are in the parentheses): 7. 2 Ear 610.5 160.2Female, n 5000, R2 0.086 (9.4) (12.6) (a) Will you do a t or an F test? What is your conclusion? (b) Are these results evidence enough to argue that there is discrimination against females? Why or why not?
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