Interpret computer output: A sample of college students was asked whether they had a job outside of school. Thefollowing MINITAB output presents the results of a hypothesis test regarding the proportion of college students who have ajob outside of school.Test of p=0.3 vs p>0.395%LowerX NSample pBoundZ-ValueP-Value411 11980.343072 0.3205113.250.001Part: 0 / 3Part 1 of 3(a) What are the null and alternate hypotheses?Ho:OOD=0H:

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Answered: Interpret computer output: A sample of…

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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Before the semester began, Professor Keithley predicted that 15% of hisphilosophy students would receive an A, 30% a B, 40% a C, 10% a D, and 5%an F. At the end of the semester, 14 of Professor Keithley’s philosophy studentsearned an A, 19 a B, 12 a C, 5 a D, and 2 an F.Use the Chi-Square test and a 0.05 level of significance to determine if ProfessorKeithley’s predicted percentages were accurate. (State your null and alternativehypothesis, find the critical values and test statistics, make a decision, and writea conclusion based on your results).
A professor at the University of Wisconsin is interested in studying the relationship between officer’s gender and citizen complaints. The professor gathered information on 55 officers randomly sampled from the Chicago Police Department. Using the data collected below apply the five steps of the hypothesis testing process to answer the research question: is there a relationship between gender and citizen complaints. Use a two-tailed test with an alpha level of 0.05 Male Officers Female Officer n = 35 n = 20 M = 10.57 M = 8.34 SS = 901.34 SS = 794.34 Step 1. State hypotheses and alpha level. Step 2. Locate critical region. Step 3. Collect data and calculate test statistic.
Question 4 APPROVE APPROV APPROVE APPROVE i. Procedure: Select an answer APPROVE A poll was conducted by a researcher on March 18-19, 2020, in English and Spanish, among a random national sample of 213 adults. In the poll, 32 Americans approve of the president's management of the crisis. Construct a 94% confidence interval for the percentage of the Americans that approve of the president's management of the crisis. Select an answer One mean Z procedure One proportion Z procedure One variance x² procedure One mean T procedure APPROVE ii. Assumptions: (select everything that applies) APPROVE The number of positive and negative responses are both greater than 10 Sample size is greater than 30 Normal population Simple random sample Population standard deviation is known Population standard deviation is unknown iii. Unknown parameter: Select an answer Select an answer p. population proportion σ², population variance μ, population mean
QUESTION 9 Find the test statistic to test the claim that u1
10.3.15-T In a study, researchers wanted to measure the effect of alcohol on the hippocampal region, the portion of the brain responsible for long-term memory storage, in adolescents. The researchers randomly selected 20 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x= 8.03 cm and s =0.8 cm°. Conduct the appropriate test at the a= 0.01 level of significance. Ho: = 9.02 H1:p < 9.02 (Type integers or decimals. Do not round.) Identify the t-statistic. to = - 5.53 (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.)
Please answer within 30min thanks.Answer Letter D Eonly choices provided in pic.
The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,95110,951 kilowatt hours (kWh) of electricity this year. A local power company believes that residents in their area use more electricity on average than EIA's reported average. To test their claim, the company chooses a random sample of 184184 of their customers and calculates that these customers used an average of 11,162kWh11,162⁢kWh of electricity last year. Assuming that the population standard deviation is 1263kWh1263⁢kWh, is there sufficient evidence to support the power company's claim at the 0.050.05 level of significance? Step 2 of 3 : Compute the value of the test statistic. Round your answer to two decimal places.
Question 6.130 What is the p-value? Would you accept or reject the null at the 12% level?
9.23 Question attached in picture format.
4.44 Nearsighted: It is believed that nearsightedness affects about 8% of all children. In a random sample of 194 children, 21 are nearsighted. Conduct a hypothesis test using the 5% significance level a) Construct hypotheses appropriate for the following question: Do these data provide evidence that the 8% value is inaccurate! OH P-0.08 H:p> 0.08 OH₂:p-0.08 Hap<0.08 Ho:p=0.08 HA:P 0.08 b) What proportion of children in this sample are nearsighted? Round your answer to 4 decimal places. c) Given that the standard error of the sample proportion is 0.0195 and the point estimate follows a nearly normal distribution, calculate the test statistic (use the 2-statistic). Round your answer to 2 decimal places. d) What is the p-value for this hypothesis test? Round your answer to 4 decimal places. P.- e) What is the decision for this hypothesis test? Osince pa we reject the null hypothesis and accept the alternative Osince pa we accept the null hypothesis Osince pa we do not have enough…
Question 10: A researcher conducts an independent-samples t test comparing two group means of 11.3 and 12.7. She also obtains values of 2.2 for sdifference 4.64 for pooled variance, and 40 for degrees of freedom total. What is the value of the test statistic? -0.64 -0.30 -0.035 -0.12

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