The mean SAT score in mathematics, u, is 545. The standard deviation of these scores is 39. A special preparation course claims that itsgraduates will score higher, on average, than the mean score 545. A random sample of 27 students completed the course, and their mean SATscore in mathematics was 566. Assume that the population is normally distributed. At the 0.01 level of significance, can we conclude that thepreparation course does what it claims? Assume that the standard deviation of the scores of course graduates is also 39.Perform a one-tailed test. Then complete the parts below.Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary, consult alist of formulas.) (a) State the null hypothesis H and the alternative hypothesis H .HoH :0(b) Determine the type of test statistic to use.(Choose one)(c) Find the value of the test statistic. (Round to three or more decimal places.)(d) Find the critical value. (Round to three or more decimal places.)(e) Can we support the preparation course's claim that its graduates score higherin SAT?O Yes ONo

We have to complete hypothesis testing.....

a) State the null hypothesis H, and the alternative hypothesis H1: H, :0 H :0 b) Determine the type of test statistic to use. |(Choose one) c) Find the value of the test statistic. (Round to three or more decimal places.) d) Find the critical value. (Round to three or more decimal places.) e) Can we support the preparation course's claim that its graduates score higher in SAT? O Yes ONo

a) State the null hypothesis H, and the alternative hypothesis H1: H, :0 H :0 b) Determine the type of test statistic to use. |(Choose one) c) Find the value of the test statistic. (Round to three or more decimal places.) d) Find the critical value. (Round to three or more decimal places.) e) Can we support the preparation course's claim that its graduates score higher in SAT? O Yes ONo

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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A change is made that should improve student satisfaction with the parking situation at your school. Before the change, 37% of students approve of the parking that's provided. The null hypothesis Ho : p = 0.37 is tested against the alternative H.: p > 0.37 The given hypotheses are incorrect. What are the appropriate hypotheses for performing this significance test? Ho : p = 0.37; Ha :p> 0.37, where p= the true proportion of students that approve of the parking that's provided. Ho : p = 0.37; Ho : p + 0.37, where p= the true proportion of students that approve of the parking that's provided. Ho : p > 0.37; Họ : p = 0.37, where p= the true proportion of students that approve of the parking that's provided. Ho : p = 0.37; H, : p + 0.37, where p the sample proportion of students that approve of the parking that's provided. Ho : p > 0.37; Họ : p = 0.37, where p the sample proportion of students that approve of the parking that's provided.
A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho: p = 0.3 Ha: p 0.3. What type of test is being conducted in this problem? OA. Two-tailed test OB. Left-tailed test OC. Right-tailed test Save
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Answer for all the parts for the question in the picture B) What is the test statistic? (2 decimal places) C) The P-value is? (round to 3 decimal places) D) What is the correct conclusion for the hypothesis test?
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The Pavalue for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the level of significance is (a) a = 0.01, (b) a = 0.05. and (c)g=0 10 P=0.0816 (a) Do you reject or fail to reject Ho at the 0.01 level of significance? O A. Fail to reject Ho because the P-value, 0.0816, is less than a = 0.01. O B. Fail to reject H, because the P-value, 0.0816, is greater than a= 0.01. OC. Reject H, because the P-value, 0.0816, is less than a=0.01. O D. Reject Ho because the P-value, 0.0816, is greater thana= 0.01. (b) Do you reject or fail to reject H, at the 0.05 level of significance? O A. Reject Ho because the P-value, 0.0816, is less than a =0.05. O B. Fail to reject H, because the P-value, 0.0816, is greater than a= 0.05. OC. Reject H, because the P-value, 0.0816, is greater than oa 0.05. O D. Fail to reject Ho because the P-value, 0.0816, is less than a = 0,05. (c) Do you reject or fail to reject Ho at the 0.10 level of significance? O A. Reject Ho because the…
Please find (c), (d), (e) and if possible check to see if my degrees of freedom is correct please:)
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H0: p1=p2 H1: p1<p2 1) Identify the test statistic. 2)Identify the P-value.
Only about 14% of all people can wiggle their ears. Is this percent lower for millionaires? Of the 400 millionaires surveyed, 40 could wiggle their ears. What can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: ? Select an answer V (please enter a decimal) H1: ? v Select an answer V (Please enter a decimal) c. The test statistic ? v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 3 decimal places.) e. The p-value is ? v a f. Based on this, we should Select an answer g. Thus, the final conclusion is that ... the null hypothesis. O The data suggest the population proportion is not significantly lower than 14% at a = 0.10, so there is statistically insignificant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 14%. O The data suggest the populaton proportion is significantly lower…
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