10. Mr. Sy asserts that fewer than5% of the bulbs that he sells aredefective. Suppose 300 bulbs arerandomly selected, each are testedand 10 defective bulbs are found.Does the data provide sufficientevidence for Mr. Sy to conclude thatthe fraction of defective bulbs isless than 0.05 using a = 0.01? Whichof the following is the appropriatealternative hypothesis?A. p < 5%B. p > 5%C. p = 5%D. p> 5%O A.B.C.O D. 9. Mr. Sy asserts that fewer than 5% *of the bulbs that he sells aredefective. Suppose 300 bulbs arerandomly selected, each are testedand 10 defective bulbs are found.Does the data provide sufficientevidence for Mr. Sy to conclude thatthe fraction of defective bulbs isless than 0.05 using a = 0.01? Whichof the following is the appropriatenull hypothesis?A. p > 5%B. p ≤ 5%C. p = 5%D. p = 5%O A.B.C.O D.

Claim: The fraction of defective bulbs is less than 0.05sample size(n)=300

Answered: 10. Mr. Sy asserts that fewer than 5%…

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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You intend to conduct a test of homogeneity for a contingency table with 4 categories in the column variable and 3 categories in the row variable. You collect data from 295 subjects.What are the degrees of freedom for the χ2 distribution for this test?d.f. =
An advertising firm has decided to ask 115 customers at each of four local shopping malls if they are willing to take part in a market research survey. At . = 0.05 is there evidence to show that the proportions are not all the same. A B D Willing 62 67 69 70 Not Willing 53 48 46 45 What are the expected numbers? (round to 3 decimal places) D Willing Not Willing The hypotheses are Ho : PA = pPB = Pc = Pp HA: At least one of the proportions is different. (claim) Since a = 0.05 the critical value is 7.815 The test value is: (round to 3 decimal places) The p-value is (round to 3 decimal places) So the decision is to do not reject Họ reject H, Thus the final conclusion is There is enough evidence to reject the claim that at least one of the proportions is different. There is enough evidence to support the claim that at least one of the proportions is different. There is not enough evidence to support the claim that at least one of the proportions is different. OThere is not enough evidence…
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7.Statistics Quiz
28.
Suppose a random sample of n=60 college students were surveyed and r=11 of them said that blue is their favorite color. Use a=0.05. What is the value of the sample test statistic? Find the p value. 80% of all supermarketsprices end in the digit 9 or 5. Suppose a random sample of 116 items in a suoermarket find that 87 have prices that end in 9 or 5. Use a=0.05. What is the value of the sample test statistic? Find the p value.
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1.6 In testing the hypothesis Ho: = 100 vs. H₁: > 100, the p-value is found to be 0.074, and the sample mean is 105. Which of the following statements is true? a. The probability of observing a sample mean at least as large as 105 from a population whose mean is 100 is 0.074. b. The probability of observing a sample mean smaller than 105 from a population whose mean is 100 is 0.074. c. The probability that the population mean is larger than 100 is 0.074. d. None of these choices.

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