20Which of the following is the correct statement of the null and alternative hypotheses?aH₀ : µ >660H₀ : µ ≤660bH₀ : µ ≤660H₀ : µ >660cH₀ : µ ≥660H₀ : µ <660dH₀ : µ <660H₀ : µ ≥660 Questions 20-22 are relatedAccording to the National Association of College Stores, average textbook cost is $660 a year. You think this is anunderstatement and want to prove that the average cost is greater than $660 a year.You survey a random sample of students. The sample data are below.605470565725865815645535600775830720485575680735900895580775620765715710745670520720750565750690690670590665590900545755695585750750645705880740610650540515570625685680625750725345700655600535600685665870445895805490610805650650775615680510595680770785725795495530840735600630630735625660725940715

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Answered: 20 Which of the following is 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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Q. 47 How can you make multiple comparison in Friedman's test when H, is rejected?
For the statement below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. A laptop manufacturer claims that the mean life of the battery for a certain model of laptop is less than 9 hours. Write the claim as a mathematical statement. OA. μ=9 OD. H>9 Choose the correct null and alternative hypotheses below. OA. Ho: *9 OB. Ho: Hs9 Ha: H=9 H₂:μ>9 OB. us9 OE. *9 OD. Ho: 9 is the claim OD. The alternative hypothesis Ha: #9 is the claim O E. The null hypothesis Ho: 29 is the claim. O F. The null hypothesis Ho: μ = 9 is the claim OC. μ29 OF. μ9 Ha:μs9 ⒸF. Ho: 29 H₂:μ<9
Suppose that BC financial aid allots a textbook stipend by claiming that the average textbook at BC bookstore costs $$ 62.87. You want to test this claim. The null and alternative hypothesis in symbols would be: H0:μ=62.87H1:μ≠62.87 The null hypothesis in words would be: The average price of all textbooks from the store is $$ 62.87 Based on a sample of 120 textbooks at the store, you find an average of 71.47 and a standard deviation of 14.2. The point estimate is: _____________(to 3 decimals). The 90 % confidence interval (use z*) is:__________ to __________ (to 3 decimals) Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
According to a food website, the mean consumption of popcorn annually by Americans is 61 quarts. The marketing division of the food website unleashes an aggressive campaign designed to get Americans to consume even more popcorn. Complete parts (a) through (c) below. (a) Determine the null and alternative hypotheses that would be used to test the effectiveness of the marketing campaign. Ho: H1: (Type integers or decimals. Do not round.) (b) A sample of 834 Americans provides enough evidence to conclude that marketing campaign was effective. Provide a statement that should be put out by the marketing department. O A. There is not sufficient evidence to conclude that the mean consumption of popcorn has risen. B. There is sufficient evidence to conclude that the mean consumption of popcorn has risen. C. There is not sufficient evidence to conclude that the mean consumption of popcorn has stayed the same. D. There is sufficient evidence to conclude that the mean consumption of popcorn has…
The weight of the average 6th grade student's backpack (with books in it) is 18.4 lbs. The principal of the school thinks that the backpack does not weigh 18.4 lbs. What is the null and alternative hypothesis? Ho: μ =18.4 and H1: p ≤ 18.4 Ho: μ =18.4 and H1: p 18.4 Ho: μ = 18.4 and H1: μ # 18.4
19
1. In the past, a chemical company produced 880 pounds of a certain type of plastic per day. Now, using a newly developed and less expensive process, the mean daily yield of plastic for the first 50 days of production is 871 pounds; the standard deviation is 21 pounds. Do the data provide sufficient evidence to indicate that the mean daily yield for the new process is less than that of the old procedure? (Use a=0.05) (d) Conclusion of the test above is Reject the null hypothesis and the mean daily yield for the new process is less than that of the old procedure. Do not reject the null hypothesis and the mean daily yield for the new process is not less than that of the old procedure. Reject the null hypothesis and the mean daily yield for the new process is not less than that of the old procedure O #3 99+ M 1941 9 O (?) + [ Rain... = 41. insert E b p
Select the null and the alternative hypotheses for the following claims: a. “I am going to get the majority of the votes to win this election.” multiple choice 1 H0: μ = 0.50; HA: μ ≠ 0.50 H0: p ≤ 0.50; HA: p > 0.50 H0: p ≥ 0.50; HA: p < 0.50 b. “I suspect that your 10-inch pizzas are, on average, less than 10 inches in size.” multiple choice 2 H0: μ ≥ 10; HA: μ < 10 H0: p ≥ 10; HA: p < 10 H0: μ = 10; HA: μ ≠ 10 c. “I will have to fine the company since its tablets do not contain an average of 250 mg of ibuprofen as advertised.” multiple choice 3 H0: μ = 250; HA: μ ≠ 250 H0: p ≤ 250; HA: p > 250 H0: p = 250; HA: p ≠ 250
Peject the null hypothesis O 0.9535: fail to reject the null hypothesis QUESTION 5 Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. The owner of a football team claims that the average attendance at games is over 694, and he is therefore justified in moving the team to a city with a larger stadium. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. O There is not sufficient evidence to support the claim that the mean attendance is less than 694. There is sufficient evidence to support the claim that the mean attendance is greater than 694. There is sufficient evidence to support the claim that the mean attendance is less than 694. There is not sufficient evidence to support the claim that the mean attendance is greater than 694.

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a	H₀ : µ >	660	H₀ : µ ≤	660
b	H₀ : µ ≤	660	H₀ : µ >	660
c	H₀ : µ ≥	660	H₀ : µ <	660
d	H₀ : µ <	660	H₀ : µ ≥	660

20 Which of the following is the correct statement of the null and alternative hypotheses? a H₀ : µ > 660 H₀ : µ ≤ 660 b H₀ : µ ≤ 660 H₀ : µ > 660 c H₀ : µ ≥ 660 H₀ : µ < 660 d H₀ : µ < 660 H₀