MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Solve problem 13
Write the null and alternative hypothesis for each claim
Transcribed Image Text:10. A medical researcher believes that the mean time in
minutes that ibuprofen relieves pain is less than the
mean time in minutes that aspirin relieves pain.
For Exercises 11-16, write the null and alternate hypotheses
for each claim.
II. A researcher believes that the percentage of men who
believe that taking the law into one's own hands is
sometimes justified is greater than the percentage of
women who feel that way.
12. An environmentalist believes that the percentage of air
pollution produced by trucks is less than the percentage
of air pollution produced by automobiles.
13. A psychiatrist thinks that the percentage of men who
say that they suffer from a great deal of stress during the
week is greater than the percentage of women who say
that.
14. A media consultant thinks that the percentage of
college-educated adults who watch the early news on
television is greater than the percentage of adults who
do not have a college degree who watch the early news
on television.
15. An attorney states that the percentage of criminal trial
lawyers who think that the bar exam does not measure
their ability to practice law is not the same as the per-
centage of civil trial lawyers who feel that way.
16. A school superintendent believes that the percentage of
senior high school students in her school district who
the same
Transcribed Image Text:13. A psychiatrist thinks that the percentage of men who
say that they suffer from a great deal of stress during the
week is greater than the percentage of women who say
that.
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- Questions 1 and 2: Set up the Null and Alternative hypotheses to test the following claims: 1. A health insurance company wants to determine if more than 25% of U.S. residents have been to a hospital emergency room within the past year. State the null and alternative hypotheses. H0: HA: 2. A company makes canned clam chowder (a delicious New England tradition). On the label, the company claims that the chowder contains (on average) 3.5 grams of Total Fat per serving. A consumer group would like to test this claim is true. State the null and alternative hypotheses that you would use to test if the mean amount of Total Fat per serving differs from 3.5 grams: H0: HA:arrow_forwardQuestions 1 and 2: Set up the Null and Alternative hypotheses to test the following claims: 1. A health insurance company wants to determine if less than 25% of U.S. residents have been to a hospital emergency room within the past year. State the null and alternative hypotheses. H0: HA: 2. A company makes canned clam chowder (a delicious New England tradition). On the label, the company claims that the chowder contains (on average) 3.5 grams of Total Fat per serving. A consumer group would like to test this claim is true. State the null and alternative hypotheses that you would use to test if the mean amount of Total Fat per serving differs from 3.5 grams: H0: HA:arrow_forwardQuestion 8: give the conclusionarrow_forward
- Please answer b c and darrow_forwardfacing up. The student rolls the cube 100 times and lands with 6 facing up 20 times. The P-value for the test of the hypotheses, Hop-0.17 and H p>0.17, is 0.19. What is the correct conclusion given a=0.05? O Because the P-value is less than a=0.05, the student should reject Ho. O Because the P-value is less than a=0.05, the student should reject Ho. O Because the P-value is greater than a=0.05, the student should reject Ho: O Because the P-value is greater than a=0.05, the student should fail to reject Ho. Save and Exit Next Submit Mark this and return 23 $ & 3 4. 5 6. 7 8. y d f h k 60arrow_forwardQUESTION 4 Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support this claim. Use the correct symbol (u. p. a) for the indicated parameter. A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p. is less than 2 in every one thousand. Ho:p> 0.002 H₁; p ≤ 0.002 Ho: p 0.002 Ho: P = 0.002 Hj: p < 0.002arrow_forward
- FOR THIS, WE REJECT THE NULL FOR BOTH MODELS.arrow_forwardProblems 29 and 30 refer to a survey of 1450 people, in which it was found that 781 favor creation of a national high school graduation exam. The setup of the null and alternative hypotheses to test whether there is sufficient evidence that a majority of people (i.e., more than 50%) favor creation of such an exam is - 1450 people -781 favor creation Of national HS gradvanon exom (a) Ho : p= .54 vs. H1 : p > .54 (b) Họ : p = .50 vs. H1 : p > .50 (c) Họ : p = .50 vs. H1 : p # .50 (d) Ho : p = .50 vs. H1 : p > .50 (c) Ho : p= .50 vs. H1 : p > .54 The value of the test statistic is: (a) .039 (b) 3.102 (c) 2.941 (d) 2.506 (e) 2.950arrow_forward
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