60% of students entering four-year colleges receive a degree within six years. Is this percent smaller thanfor students who play intramural sports? 130 of the 241 students who played intramural sports received adegree within six years. What can be concluded at the level of significance of a = 0.01?a. For this study, we should use Select an answerb. The null and alternative hypotheses would be:Ho:1?vНо:7Select an answer v(please enter a decimal)H1:1?v|Selectan answer v(Please enter a decimal)c. The test statistic ?(please show your answer to 3 decimal places.)d. The p-value(Please show your answer to 4 decimal places.)e. The p-value is ? vaf. Based on this, we should Select an answer v the null hypothesis.g. Thus, the final conclusiion is that ..The data suggest the population proportion is not significantly smaller than 60% at a = 0.01,so there is not sufficient evidence to conclude that the population proportion of students whoplayed intramural sports who received a degree within six years is smaller than 60%.The data suggest the populaton proportion is significantly smaller than 60% at a = 0.01, sothere is sufficient evidence to conclude that the population proportion of students who playedIntramural sports who received a degree within six years is smaller than 60%%3DThe data suggest the population proportion is not significantly smaller than 60% at a = 0.01,so there is sufficient evidence to conclude that the population proportion of students whoplayed intramural sports who received a degree within six years is equal to 60%.h. Interpret the p-value in the context of the study.If the population proportion of students who played intramural sports who received a degreewithin six years is 60% and if another 241 students who played intramural sports are surveyedthen there would be a 2.74 chance fewer than 54% of the 241 students surveyed received adegree within six year5.E7°E Clouudy

a. For this study, we should use one sample proportion z test. b. The null and alternative…

Answered: 60% of students entering four-year…

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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A Verizon researcher compared the number of text messages sent by a sample of teenage boys to the population mean for all Verizon users. She found no evidence to conclude that there was a difference. Unfortunately, her conclusion was in error. (a) What type of error did she make? (b) What conclusion should she have reached?
It has been claimed that at UCLA at least 40% of the students live on campus. In a random sample of 250 students, 90 were found to live on campus. Does the evidence support the claim at = .01?
It is bleieved that the percent of convicted felons who have a history of juvenile deliquency is 70%. Is there evidence to support the claim that the actual percentage is more than 70% if out of 200 convicted felons, we find that 154 have a history of juvenile deliquency? Set the level of significance at a = 0.05
Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 281 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a=0.1 level of significance. *** Because npo (1-Po) = 199.7 less than 5% of the population size, and the sample can be reasonably assumed to be random, the 10, the sample size is requirements for testing the hypothesis are satisfied. (Round to one decimal place as needed.) D What are the null and alternative hypotheses? Ho versus H₁ (Type integers or decimals. Do not round.) Help me solve this View an example Clear all Check answer Type here to search O 1:12 PM 6/18/2022 3 1 7 Q 2 @ 7 S E C $ 4 R 06 5 T S B 6 Get more help - 18 H & N 8 M hp K a O a P 12 (?) prt sc 94°F Mostly…
A teacher claims that over 9% of maths students are married. In the survey at the beginning of semester, 45 students answered the question about their marital status. 9 of them said they were married. Calculate the test statistic Z? Round answer to 2 decimals
What is t critical for a study that contains 9 participants in one group and 11 is another group? Input three decimals. Answer:
A company that has a 10% market share (they sell their product to 10% of all potential buyers) launches a marketing campaign. At the end of the campaign period, the company conducts a survey in order to assess whether its market share has increased. The result of the survey issued to 500 customers was 12.5%.h0= p=0.10, h1= p>0.10test statistic= 1.86P value= 0.0314 a. State your conclusion using ΅ = 0.05.b. What would be the potential Type I and Type II errors in this problem? Explain these possible errors in context.
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The following equation was estimated by OLS: Unipa = 1.392 - 0.0135 psperc + 0..00148 sat n = 4,137, R2 = 0.273 Where unipa is measured on a four-point scale, psperc is the percentile in the post- sixteen class (defined so that, for example, psperc =5 means the top 5% of the class), and sat is the combined maths and verbal scores on the student achievement test.
In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20 pounds. Suppose that last summer 59 out of a random sample of 85 guests did, in fact, catch northern pike weighing over 20 pounds. Does this indicate that the population proportion of guests who catch pike over 20 pounds is different from 75% (either higher or lower)? Use a = 0.05. (a) What is the level of significance? State the null and alternate hypotheses. O Ho: p = 0.75; H1: p 0.75 (b) What sampling distribution will you use? O The Student's t, since np 5 and ng > 5. O The standard normal, since np 5 and nq > 5. What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find the P-value of the test statistic. (Round your answer to four decimal places.)
The correlation between a car's engine size and its fuel economy (in mpg) is r = -0.718. What fraction of the variability in fuel economy is accounted for by the engine size? ... % (Round to the nearest tenth as needed.)
What is the z-score corresponding to x=27, if bar (x)=23 and SD=3.2 ?

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