Executives of a supermarket chain are interested in the amount of time that customers spend in the stores during shopping trips. The mean shopping time, .spent by customers at the supermarkets has been reported to be 40 minutes, but executives have good reason to believe that u is greater than 40 minutes. Theexecutives hire a statistical consultant and ask her to perform a statistical test.To perform her statistical test, the consultant collects a random sample of shopping times at the supermarkets. She computes the mean of these times to be 47minutes and the standard deviation of the times to be 12 minutes.Based on this information, complete the parts below.(a) what are the null hypothesis 1, and the altermative hypothesis 1, that should be used for the test?(b) Suppose that the consultant decides to reject the null hypothesis. What sort of error might she be making?(Choose one)(c) Suppose the true mean shopping time spent by customers at the supermarkets is 50 minutes. Fil in the blanks todescribe a Type II error.A Type Il error would be (Choose one)v the hypothesis that is (Choose one)(Choose one) v when, in fact, is (Choose one)

Test is that whether the average is greater than 40 minutes. The type I error is defined as…

Answered: (a) what are the null hypothesis H, and…

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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In the test of a certain hypothesis the p-valuecorresponding to the test statistics is 0.0316. Can the null hypothesis be rejected at the; i. 0.01 level of significance? ii. 0.05 level of significance? iii. 0.10 level of significanc
Self-reported injuries among left- and right-handed people were compared i n a survey of 1896 college students i n British Columbia, Canada. Of the 18 O left- handed students, 93 reported at least one injury. In the same period, 619 of the 1716 right-handed students repor ted at least one injury. Test to compar e the proportions of injured students, left- versus right-handed; state clearly your null and alternative hypotheses and choice of test size. Treatment 707 740 745 652 649 676 699 696 712 708 749 690 Control 669 650 651 627 656 642 698
There are 3 parts to this question The value of the standard score is (round to two decimal places as needed) The critical value(s) is/are (use a comma to separate the answers as needed. Round to two decimal places as needed.) Determine whether the alternative hypothesis is supported at a 0.01 significance level.
The display provided from technology available below results from using data for a smartphone carrier's data speeds at airports to test the claim that they are from a population having a mean less than 5.00 Mbps. Conduct the hypothesis test using these results. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Click the icon to view the display from technology. ..... Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? Ο Α. Η : μ 5.00 Mbps D. Ho: µ= 5.00 Mbps H1: µ#5.00 Mbps Identify the test statistic. (Round to two decimal places as needed.) Display from technology T-Test µ<5.00 t= - 0.213135 p = 0.416103 X= 4.82 Sx = 5.665316 n= 45
Please assist with question I am lost
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.
Please help it’s not graded
What is the response variable? Is it categorical or quantitative ?
A hypothesis test is performed at significance level a=0.05: The p-value is found to be 0.001. What can we conlcude? O Our dataset and statistical test proves that the null hypothesis it true. O The statistical test in inconclusive, and the dataset is neither evidence for or against any hypothesis. O none of these O Our dataset and statistical test leads us to believe the null hypothesis is true, but we cannot say for sure. Our dataset is evidence in support of the null hypothesis. O Our dataset and statistical test leads us to reject the null hypothesis. Our data is statistically significant evidence against the null hypothesis. O Our dataset and statistical test proves that the null hypothesis it false.
what is the correct choice
The test of significance is 2.060
I only need help with the marked sections, thank you for the help I don’t know what went wrong

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