Document1toSaveOFFReferencesMailingsReviewViewOTell me2 ShareDrawDesignLayoutE E E E EA.Helvetica N... v10.5v A AAa vStylesPaneStylesUv abA v AvX x²Andrew thinks that people living in a rural environment have a healthier lifestyle than other people.He believes the average lifespan in the USA is 77 years. A random sample of 20 obituaries from2.39. Does this samplenewspapers from rural towns in Idaho give = 81 and Sprovide evidence that people living in rural Idaho communities live longer than 77 years?(a) State the null and alternative hypotheses: (Type "mu" for, the symbol P , e.g. mu 1 for themean is greater than 1, mu <1 for the mean is less than 1, mu not = 1 for the mean is not equalto 1)HO:НА:(b) Find the test statistic, t =(c) Does this sample provide evidence that people living in rural Idaho communities live longer than77 years? (Use a 10% level of significance)

The mean difference between the sample and the population is tested for a small sample size less…

Answered: Andrew thinks that people living in a…

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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Researchers at Baylor University recently released a study about religion in America. One part of the study showed the "beliefs about God" for people who were either "affiliated with a religion" or "unaffiliated with a religion." The possible categories for beliefs in God are "Believe in a higher power", "sometimes believe", "don't believe", and “believe with doubts." Here are the observed frequencies for a Chi-square test of association and we have added the row and column totals. Believe Sometimes Don't Believe Total Believe Believe with doubts affiliated w relig 90 40 10 60 200 unaffiliated w rel 50 30 15 100 Total 140 70 15 75 300 We want to do a Chi-Square test of association for religious affiliation versus belief in God. What is the expected frequency for the "affiliated w relig" and "Believe" category? Round your answer to the tenths position.
In a study done in Michigan, it was determined 38 (out of 62) poor children who attended preschool needed social services later in life compared to 49 (out of 61) poor children who did not attend preschool. Does this study provide significant evidence that preschool reduces the need for social services later in life? Evaluate on a TI 83 calculator
Question 960379: An engineer claims that her new battery will operate continuously for at least 7 minutes longer than the old battery. To test the claim, the company selects a simple random sample of 100 new batteries and 100 old batteries. The old batteries run continuously for 190 minutes with a standard deviation of 25 minutes; the new batteries, 200 minutes with a standard deviation of 35 minutes. Test the engineer's claim that the new batteries run at least 7 minutes longer than the old. Use a 0.05 level of significance.
3) A Chi-square test can be done to test all of the following EXCEPT which of the following? If the mathematical model accurately predicts the pattern of data values observed. If the mathematical model accurately predicts the total number of values observed. If traits exhibit independence with regards to the probability of seeing their combinations in individuals in a population. If individuals from different populations have the same probability of possessing various traits. If the mathematical model accurately predicts the proportions of data values observed.
Researchers wanted to determine if having a computercomputer in the bedroom is associated with obesity. The researchers administered a questionnaire to 394394 twelve-year-old adolescents. After analyzing the results, the researchers determined that the body mass index of the adolescents who had a computercomputer in their bedroom was significantly higher than that of the adolescents who did not have a computercomputer in their bedroom. Complete parts (a) through (e) below.(a) Why is this an observational study? What type of observational study is this? Why is this an observational study? A.The researchers administered a questionnaire to obtain their data without trying to influence an explanatory variable of the study. B.The researchers observed the behavior of the individuals in the study without trying to influence an explanatory variable of the study. C.The researchers tried to influence the outcome of the study. D.The researchers intentionally changed an explanatory…
In a one-tail hypothesis test where you reject Ho only in the lower tail, what is the p-value if ZSTAT =-116? Click here to view page 1 of the Normal table, Click here to view page 2 of the Normal table. The p-value is (Round to four decimal places as needed.)
A sample of ?=14n=14 observations is drawn from a normal population with ?=1030μ=1030 and ?=200σ=200. Find each of the following: A. ?(?¯>1110)P(X¯>1110) Probability = B. ?(?¯<944)P(X¯<944) Probability = C. ?(?¯>997)P(X¯>997) Probability =
A beer store wanted to test the difference on drinking habits if a younger group of 21-30 years old (n=8) to an older group of 50 to 60 years old (n=10). The store took a survey of beers per year each person had in both groups and found the following data: 21-30 group 50-60 group 50 35 17 64 25 39 88 75 53 61 62 89 36 45 29 35 29 78 State the hypotheses of the study.b. Find the critical t value for this study at an alpha level at α=.05.c. Compute the independent t testd. If significant, perform a percentage of variance test.e. State the results in APA format (numbers and words) and don’t forget to include all parts in the sentence and the direction of the results.
Determine whether the given description corresponds to an observational study or an experiment. In a study of 366 women with a particular disease, the subjects were monitored with an EEG while asleep. Does the given description correspond to an observational study or an experiment?
11:00 AA www-awn.aleks.com ODD OD Cu. Anagram puzzles involve sets of scrambled letters that must be rearranged to form words. A standard intelligence test employs these puzzles as an aid in assessing verbal ability. Several years ago, an undergraduate noticed that some versions of the intelligence test employed anagram puzzles with lower-case letters, and some versions employed anagram puzzles with upper-case letters. She performed experiments, with college students as participants, to examine the completion times for the two versions. The histogram below is the figure that summarizes her information for the completion times of the 25 students being tested on the lower-case version. Relative frequency 0.40- 0.32 0.30 0.24 0.24 0.20- 0.12 0.10- 0.08 0.00 H 500 700 900 1100 1300 1500 Completion time (in seconds) Based on the histogram, draw the ogive (the cumulative relative frequency polygon) for her data. Cumulative relative frequency 0.8 0.6 0.4 0.2 0.00 0.00 000 0.00 0.00 000 S00…
Can you please answer drop down question, A, and B A. H0 = p1 or μ1 (=,<,>, ≠ ) p2 or μ2 H1= p1 or μ1 (=,<,>, ≠ ) p2 or μ2 B. Z or T

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