A) if x=37.5 and s= 11.7 complete the test statistic B) at the 0.1 level of significance determine the critical value(s)C) draw a t distribution that depicts the critical region D) will the researcher reject the null hypothesis? To test Ho: u= 40 versus H,:H< 40, a random sample of size n= 25 is obtained from a population that is known to be normally distributed. Complete parts (a) through (d) below.E Click here to view the t-Distribution Area in Right Tail.(a) If x = 37.5 and s 11.7, compute the test statistic.to =(Round to three decimal places as needed.)

Answered: Image /qna-images/answer/96d183cb-1f02-4201-9efa-5b118366f919.jpg

A) if x=37.5 and s= 11.7 complete the test statistic B) at the 0.1 level of significance determine the critical value(s) C) draw a t distribution that depicts the critical region D) will the researcher reject the null hypothesis

A) if x=37.5 and s= 11.7 complete the test statistic B) at the 0.1 level of significance determine the critical value(s) C) draw a t distribution that depicts the critical region D) will the researcher reject the null hypothesis

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

See similar textbooks

Similar questions

10. The t test for two independent samples - One-tailed example using tables Aa Aa Most engaged couples expect or at least hope that they will have high levels of marital satisfaction. However, because 54% of first marriages end in divorce, social scientists have begun investigating influences on marital satisfaction. [Data source: This data was obtained from National Center for Health Statistics.] Suppose a social psychologist sets out to look at the role of economic hardship in relationship longevity. She decides to measure marital satisfaction in a group of couples living above the poverty level and a group of couples living below the poverty level. She chooses the Marital Satisfaction Inventory, because it refers to "partner" and "relationship" rather than "spouse" and "marriage," which makes it useful for research with both traditional and nontraditional couples. Higher scores on the Marital Satisfaction Inventory indicate greater satisfaction. There is one score per couple.…
Test the claim that the two samples described below come from populations with the same mean. Assume that the samples are independent simple random samples. Sample 1: n1 = 11, ¤1 = 20, s1 = 0.5. Sample 2: n2 = 10, ¤2 12, s2 = 3.5. (a) The standardized test statistic is (b) Find the t critical value (endpoint of rejection region) for a significance level of 0.02 for an alternative hypothesis that the first population has a larger mean (one-sided test): t* = (note: use the Welch-Satterthwait degrees of freedom formula
Suppose you perform the hypothesis test Ho: u = 80 versus H1:µ + 80. The population variance, o, is unknown. 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? t Part 2 of 4 Part 2: 2) Choose the correct critical region. Reject Ho if t > ta Reject Ho if t ta Reject Ho if t ta Reject Ho if t ta O Reject Ho if t 2 tę Reject Ho if t s - ta or t > ta O Reject Ho if t t Reject Ho if t < – ta O Reject Ho if t < - t; ort 2 tę
7?
Find the critical value and rejection region for the type of t-test with level of significance a and sample size n. Two-tailed test, a=0.1, n=23 O A. to= -1.717, t, = 1.717, t 1.717 O B. t, = - 1714, t, = 1.714,t 1.714 O C. to - 1.321, t, = 1.321;t 1.321 O D. t, = 1.717; t> 1.717
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 n2. Assume that the samples are independent, normal, and random. Answer parts (a) and (b). Ha: H1 ), use "One Tail, a" column with a positive sign two-tailed (+), use “Two Tails, a" column with a negative and a positive sign. (a) Find the critical value assuming that the population variances are equal. Read the T Table when d.f. = n,+ n2 -2 (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 assuming that the population variances are not equal. Read the T Table when d.f.= smaller of n,-1 or n2 -1 (Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate answers as needed.)
Can you please check my work
Use the t-distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal.Test H0 : μ=15 vs Ha : μ>15 using the sample results x¯=17.2, s=6.4, with n=40. (a) Give the test statistic and the p-value.Round your answer for the test statistic to two decimal places and your answer for the p-value to three decimal places.test statistic = p-value =
a) Determine the appropriate test statistic and test statistic value. b) If the significance level of the test is alpha(couldn't make the alpha symbol) = 0.05 determine the appropriate critical region. c) What is the Null hypothesis (H0) and Alternative Hypothesis(HA) to be tested in this situation.
A one-way ANOVA test is performed on three independent samples with n1 = 6, n2 = 7, and n3 = 8. What is the critical value obtained from the F-table for this test at the 2.5% level of significance? a) 4.56 b) 3.55 c) 29.45 d) 39.45