Is there an association between the typepeoplethey are delinquent in paying their utility bill? A representative sample of 526 households wastaken to investigate this question. Assume all conditions are met. The table below contains theresults.Contingency TableType of Heating By Delinquent in Payment?CountYesNoTotalsElectricity20130150Heating Oil152035Natural Gas50240290Propane123951Totals97429526Use the JMP output below to report the correct p-valueand the degrees offreedom? Report the numbers as listed in the output.Mosaic Plot1.00-0.75-TestsNo0.50-DF-LogLike RSquare (U)52637.49720200.02980.25-TestChiSquare Prob>ChiSq14.994Yes0.00-Likelihood Ratio0.0018*Pearson17.6300.0005*Type of HeatingDelinquentin Payment?ElectricityHeating OilNaturalGasPropane

Answered: taken to investigate this question.…

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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Individuals filing federal income tax returns prior to March 31 received an average refund of $1056. Consider the population of last minute files who mail their tax return during the last five days of the income tax period. A researcher suggest that a reason individuals wait until the last five days is that on average these individuals receive lower refunds than do early filers. Develop appropriate hypotheses such that rejection of H0 will support the researcher’s contention. For a sample of 400 individuals who filed a tax return between April 10 and 15, the sample mean refund was $910. Based on prior experience, a population standard deviation of σ =$1600 may be assumed. What is the p-value? At α=.05, what is your conclusion? Repeat the preceding hypothesis test using the critical value approach.
In a recent submission to a Joint Select Committee of Parliament, the National Consumers' League said “In reality, cow’s milk especially processed cow’s milk, has been linked to a variety of health problems, including: mucous production, haemoglobin loss, childhood diabetes, heart disease, arteriosclerosis, arthritis, kidney stones, mood swings, depression, irritability, allergies.” Researchers know this to be true, though the Committee rejected the submission. Suppose that 34% of the population has mood swings, allergies, irritability and depression (MAID) and is known to consume dairy products. Also, 80% of the populace consumes dairy products. Suppose a randomly chosen dairy products user is tested, what is the probability this person has MAID? Select one: a. 0.425 b. 0.460 c. 0.140 d. 0.272
U.S. Department of Health and Human Services regulations for informed consent state that "an investigator shall seek such consent only under circumstances that provide the prospective subject or the representative sufficient opportunity to consider whether or not to participate and that minimize the possibility of coercion or undue influence." Coercion occurs when an overt or implicit threat of harm is intentionally presented by one person to another in order to obtain compliance. Which of the circumstances could be seen as constituting coercion? Select all that apply. None of the other answer choices are instances of coercion. A researcher has developed a vaccine against a new virus. The researcher is recruiting healthy adult volunteers from an inner city to determine if the vaccine is safe in humans. Volunteers will be paid for their participation. One participant tells one of the research nurses that he would not have enrolled in the study, but he recently lost his…
According to the Pew Research Center,on the propotion of the American population who use only a cellular telephone (landline) is 0.37. Jason conducts a survey of one hundred fifty 20 to 24 year olds who live on their own and finds that 73 do not have a landline to their home. Does this provide sufficient evidence to conclude that the proportion of 20 to 24 year olds who live on their own and don't have a landline is greater than 0.37? Use a=0.10 level of significance. A) Verify that nP0(1-P0)>10 and n< 0.05N (Assume the population sizes is N=40 million) B) State the appropiate null and alternative hypotheses. C) Indicate whether the hypothesis is left, right, or two- tailed.
According to the Pew Research Center,on the propotion of the American population who use only a cellular telephone (landline) is 0.37. Jason conducts a survey of one hundred fifty 20 to 24 year olds who live on their own and finds that 73 do not have a landline to their home. Does this provide sufficient evidence to conclude that the proportion of 20 to 24 year olds who live on their own and don't have a landline is greater than 0.37? Use a=0.10 level of significance. D) Compute the test statistic z0. Round to the nearest hundredth. E) Draw a normal model with the area that represents the P-value shaded. F) Determine and interpret the P-value. What is the conclusion of the hypothesis test?
In a study conducted by Zogby International for the Democrat and Chronicle, more than 700 New Yorkers were polled to determine whether the New York state government works. Respondents surveyed were asked questions involving pay cuts for state legislators, restrictions on lobbyists, term limits for legislators, and whether state citizens should be able to put matters directly on the state ballot for a vote. The results regarding several proposed reforms had broad support, crossing all demographic and political lines. Suppose that a follow-up survey of 100 individuals who live in the western region of New York was conducted. The party affiliation (Democrat, Independent, Republican) of each individual surveyed was recorded, as well as their responses to the following three questions. Should legislative pay be cut for every day the state budget is late? Yes _________ No _________ Should there be more restrictions on lobbyists? Yes _________ No _________ Should there be term limits…
Suppose a company surveyed the work preferences and attitudes of 1,006 working adults spread over three generations: baby boomers, Generation X, and millennials. In one question, individuals were asked if they would leave their current job to make more money at another job. The sample data are summarized in the following table. Leave Job forMore Money? Generation Baby Boomer Generation X Millennial Yes 124 150 171 No 202 181 178 Conduct a test of independence to determine whether interest in leaving a current job for more money is independent of employee generation. State the null and alternative hypotheses. H0: Interest in leaving job for more money is independent of the employee generation.Ha: Interest in leaving job for more money is not independent of the employee generation. H0: Interest in leaving job for more money is mutually exclusive of the employee generation.Ha: Interest in leaving job for more money is not mutually exclusive of the employee…

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