10:00 PM Sat May 7* 35%myopenmath.comSuppose that BC financial aid alots a textbook stipend by claiming that the average textbook at BCbookstore costs $ 58.84. You want to test this claim.The null and alternative hypothesis in symbols would be:O Ho:p < 58.84H:p > 58.84O Ho:H = 58.84H1:µ # 58.84%3Dd:°HOH1:p # 58.84O Ho:p = 58.84%3DO Ho:p > 58.84H1:p < 58.84O Ho:µ < 58.84H1:µ > 58.84O Ho: µ 2 58.84H1:p < 58.84The null hypothesis in words would be:O The average of price of all textbooks from the store is less than $ 58.84.O The average price of all textbooks from the store is $ 58.84O The proportion of all textbooks from the store that are less than 58.84 is equal to 50%O The average price of textbooks in a sample is $ 58.84O The average of price of all textbooks from the store is greater than $ 58.84.Based on a sample of 170 textbooks at the store, you find an average of 73.64 and a standard deviationof 10. 10:00 PM Sat May 7* 35°myopenmath.comBased on a sample of 170 textbooks at the store, you find an average of 73.64 and a standard deviationof 10.The point estimate is:(to 3 decimals)The 90 % confidence interval (use z*) is:to(to 3decimals)Based on this we:O Reject the null hypothesisO Fail to reject the null hypothesisQuestion Help: Message instructorD Post to forumSubmit QuestionJump to Answer

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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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Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = What is the correct result based on the data?
Solve all problems using a chi square analysis. You must use statistics to support your answers. 1. Azookeeper hypothesizes that changing the intensity of the light in the primate exhibits will reduce the amount of aggression between the baboons. In exhibit A, with a lower light intensity, he observes 36 incidences of aggression over a one-month period. In exhibit B, with normal lights, he observes 42 incidences of aggression. Should he support or reject his hypothesis? Observed Expected (o-e)/e (6-42)^2/e I X=? Degrees of freedom = 1 Critical value ?
Automobile accident and asked what they saw. One group of students was asked how fast were they going when they smashed into the car? Other group verb was changed to hit. Smashed into reported higher rates of speed than hit. Suppose a researcher repeats this study with current college students and obtains the following results. Smashed into Hit n=15 n=15 M=40.8 M=34.0 SS=510 SS=414 1. State the hypothesis 2. Do the results indicate a significantly higher estimated speed for the smashed into group? Use a two-tailed test with a=.05. Compute estimated Cohen's D to measure size of the effect. State numerical value and meaning.
A researcher conducts a hypothesis test using a sample from an unknown population. If the t statistic has df = 30, how many individuals were in the sample?
5 a. Perform a Chi-square test Goodness of Fit test on following data to see whether Republicans and Democrats are equally represented in the sample. Report the resulting chi-square number. What is your political affiliation? Republican 102 Democrat 98 200 = QUESTION 5 B Given the chi-square number for the question above, find the associated p-value and indicate the conclusion with regard to H0/H1. We accept H1. We accept H0. We do not reject H1. We do not reject H0.
Please solve
A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 68%. Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H, and the alternative hypothesis H that we would use for this test. H: 0 O
A professor claims that the average grade of students in her courses is 80%. Identify Type II error for this claim. O Fail to reject the claim that average grade is 80% when it is actually 80%. O Fail to reject the claim that average grade is 80% when it is actually different from 80%. O Reject the claim that average grade is 80% when it is actually 80%. O Reject the claim that average grade is 80% when it is actually different from 80%.

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