Which of the followingstatements is(are) TRUE?I. Chi-square goodness-of-fit testcan be performed.II. Suppose the Chi-squaregoodness-of-fit test is appropriate,there is sufficient evidence to saythat the incidence of road accidentsis not equally likely to happenamong days of the week.Both I and IIO Neither I nor II The lawmaker asked all mayors of herdistrict to request for additionaltraffic enforcers who will strictlyimplement traffic road law andensure road safety daily, particularlyon days with high incidence of roadaccidents. Based on the original plan,these additional traffic enforcers willbe distributed equally among days ofthe week.Based on the 345 randomly selectedcases, is the incidence of roadaccidents equally likely to happenamong days of the week?R COMMANDER OUTPUTcounts: enforcersMon Tue Wed Thu Fri Sat Sun46 46 59 49 574840Chi-squared test for given probabilities.Tabledata:X-squared = 5.3449, df = 6, p-value = 0.5004

Given χ2 =5.3449, df=6, p value=0.5004

Answered: Which of the following statements…

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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10 12 14 16 18 Which of the following statements are true about the boxplot shown here? I. The distribution is skewed right. II. The interquartile range is about 8. III. The median is about 10. I only O |l only O III only OI and II O Il and II
You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 32 students. You want to test this claim. You randomly select 18 classes taught by full-time faculty and determine the class size of each. The results are shown below. At α = 0.01, can you support the university’s claim?35 28 29 33 32 40 26 25 29 28 30 36 33 29 27 30 28 25
Can I have a detailed step-by-step explanation for th part (b) of the following question? Thank you very much! Question : The marks obtained by 120 students in a mathematics test is given below. Class 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100 Frequency 5 9 16 22 26 18 11 6 4 3 a) Find mean,median and mode of the above set of data. b) Find Q1;Q2;Q3 and IQR of the above data set. c) Draw an ogive for the given distribution by using a suitable scale then justify your answers by using the orgive.
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Assume that two dependent samples have been randomly selected from normally distributed populations. A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The results are given below. Before 74 80 72 80 80 67 93 85 91 77 After 73 80 70 83 78 68 90 82 87 75 Provide a 90% CI on the difference. Round your answers to 3 decimals. Provide negative signs when appropriate. Use leading zeros for values less than 1. Lower Limit: Upper Limit: Based on the results of your CI, what is the conclusion to a two-tailed hypothesis test at alpha = .10? Reject Ho / Do Not Reject Ho Do the results suggest there is a difference in means at alpha = .10? Yes / No
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A researcher belleves that 52% of people who grew up as the only child have an IQ score over 100. However, unknown to the researcher, this figure is actually 50%, which is the same as in the general population. To attempt to find evidence for the claim, the researcher is going to take a random sample of 400 people who grew up as the only child. Let p be the proportion of people in the sample with an IQ score above 100. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p. (b) Find the standard deviation of p. (c) Compute an approximation for P(p 20.52), which is the probability that there will be 52% or more people with IQ Scores over 100 in the sample. Round your answer to four decimal places. 2022 acer
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Articles manufactured by a company are produced by 3 operators using different machines. The manufacturer wishes to determine whether there is a difference between machines A,B,C. Test at (a) a=0.05, (b) a=0.01 level of significance Operator 1 Operator 2 Operator 3 A834 C817 B824 B822 A830 C825 C837 B821 A831
You are conducting a test of independence to see if getting the flu is independent of whether or not you got a flu shot. Use a = 0.05. Report all answers accurate to four decimal places. Here is the sample data. Category Got Flu Shot Did not get Flu Shot Category Got Flu Shot The expected observations for this table would be: Got the Flu Did not get Flu Shot The resulting (O - E)² E Got the Flu 18 51 Category Got Flu Shot Did not get Flu Shot Did not get the Flu 118 19 Got the Flu for finding the test are: Did not get the Flu What is the p-value for this test-statistic? P-Value = Did not get the Flu What is the chi-square test-statistic for this data? (add the results from the previous table) x² =
In Mendel's experiment, he obtained 724 plants with red flowers and 210 with white flowers in his cross of red flowered x white flowered pea plants. Is this result consistent with his hypothesis of factor segregation? Calculate the x and obtain the approximate value of P from Table 1, then interpret the results and clearly state your conclusion. Table 1: Chi-square table Chi Square Values and Probability Degrees of Freedom P= 0.99 0.95 0.80 0.50 0.20 0.05 0.01 1 0.000157 0.00393 0.0642 0.455 1.642 3.841 6.635 2 0.020 0.103 0.446 1.386 3.219 5.991 9.210 3. 0.115 0.352 1.005 2.366 4.642 7.815 11.345 0.297 0.711 1.649 3.357 5.989 9.488 13.277

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