b. Test the claim by constructing an appropriate confidence intervalThe 90% confidence interval is < (P₁-P₂) <(Round to three decimal places as needed.)What is the conclusion based on the confidence interval?Because the confidence interval limitsthereevidence to support the claim that the rate of left-handedness among males is less than that among femalesc. Based on the results, is the rate of left-handedness among males less than the rate of left-handedness among females?to be a significant difference between the rates of left-handedness among males and females. ThereOA. It is reasonable to conclude that the rate of left-handedness among males is less than the rate of left-handedness among femalesOB. It is reasonable to conclude that the rate of left-handedness among males is the same as the rate of left-handedness among females.OC. It is not reasonable to conclude that the rate of left-handedness among males is less than the rate of left-handedness among femalesOD. The assumptions required for the tests are not valid, so the results should not be used for inference. In a random sample of males, it was found that 25 write with their left hands and 217 do not. In a random sample of females, it was found that 57 write with their left hands and 456 do not. Use a0.05 significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) belowa. Test the claim using a hypothesis testConsider the first sample to be the sample of males and the second sample to be the sample of females. What are the null and alternative hypotheses for the hypothesis test?OA H₂: P2P₂H₁: P₁ P₂OD. Ho: P₁ P₂H₁: P₁ P₂Identify the test statistic.2-0(Round to two decimal places as needed.)Identify the P-valueP-value=(Round to three decimal places as needed.)What is the conclusion based on the hypothesis test?The P-value ismales is less than that among females.the significance level of 0.05, soOB. H₂: P1 SP₂H₁: P₂ P₂CELLEⒸE H₂: P₁ P₂H₁: P₁

There are two independent samples which are males and females. We have to test whether the rate of…

Answered: In a random sample of males, it was…

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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Find test value and p-score.
In a certain test in Calculus, the mean score of a group of 100 students was 30 and the standard deviation was 8. In a test in Physics, the mean was 52 and the standard deviation was 6. If a student scored 65 in Calculus and 70 in Physics, in which test did the student perform better? O The students performed better in their Physics test O The performance is unable to determine. O The students performed the same in both tests. O The students performed better in their Calculus test
The national percentage of automobile accident fatalities that are alcohol related is 39%. In a random sample of 96 automobile accident fatalities in the state of New York, 44 were alcohol related. Is this sufficient evidence to say that new York has a higher percentage of alcohol related automobile fatalities? a. Perform the appropriate test of hypothesis and paste the session window output below. b. What is the value of the test statistic? c. At a = .10, what is your decision?
Z?
The coach of a very popular men’s basketball team claims that the average distance the fans travel to the campus to watch a game is 35 miles. The team members feel otherwise. A sample of 16 fans who travel to games was randomly selected and yielded a mean of M= 36 miles and s= 5 miles. Test the coach’s claim at the 5% (.05) level of significance. one-tailed or two-tailed test: State the hypotheses: df= tα or t value for the critical region = sM = t (test statistic)= Decision:
= Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 43 of the 49 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 92 of the 109 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? OA. Ho: P₁ P2 H₁: P₁ = P2 O D. Ho: P₁ P2 H₁: P₁ P2 Identify the test statistic. Z= (Round to two decimal places as needed.) Identify the P-value. OB. Ho: P₁ P2 H₁: P₁ P2 ? O E. Ho: P₁ P2 H₁: P₁ P2 P-value= (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is the significance level of a =…
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A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned. Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.” Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations. 1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.
Children with autism differ significantly from children without autism on tests of varbal ability. repeated measures? or ind. with two tails?
In a random sample of males, it was found that 27 write with their left hands and 210 do not. In a random sample of females, it was found that 55 write with their left hands and 454 do not. Use a 0.05 significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) below. Question content area bottom Part 1 a. Test the claim using a hypothesis test. Consider the first sample to be the sample of males and the second sample to be the sample of females. What are the null and alternative hypotheses for the hypothesis test? A. H0: p1=p2 H1: p1>p2 B. H0: p1≥p2 H1: p1≠p2 C. H0: p1≠p2 H1: p1=p2 D. H0: p1=p2 H1: p1≠p2 E. H0: p1=p2 H1: p1<p2 F. H0: p1≤p2 H1: p1≠p2 Part 2 Identify the test statistic. z=enter your response here (Round to two decimal places as needed.) Part 3 Identify the P-value.…

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