EhUse the following contingency table to complete (a) and (b) below.CTotal D4590551351002251122TotalA103545a. Compute the expected frequencies for each cell.ABCB354580(Type integers or decimals. Do not round.)b. Compute XSTAT- Is it significant at a = 0.005?Set up the null and alternative hypotheses to test. Choose the correct answer below.OA. Ho: TAB=CH Not all are equal (wherei= AR-C3Oרו...COB. Ho: ₁¹₂HNot all are anual /whara i=12186°FVSIA chUse the following contingency table to complete (a) and (b) below.OC. Ho: Not all are equal (where j = 1, 2)H₁:₁ = ₂2Compute X STATXSTAT (Round to three decimal places as needed.)Find the p-value.p-value = (Round to three decimal places as needed.)IS XSTAT significant at a = 0.005?OD. Ho: Not all are equal (where j = A, B, C)Η: ΠΑΞ ΠΒ = ΠΕOA. Yes, because the p-value is less than the level of significance.OB. Yes, because the p-value is greater than or equal to the level of significance.OC No hooguce the value is less than the level of significance#10 박86°FVSIA

Given that: Following is the contingency table: A B C Row Total 1 10 35 45 90 2 35 45 55…

Answered: Use the following contingency table to…

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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Members of fraternities and sororities are required to volunteer for community service. Do fraternity brothers work fewer volunteer hours on average than sorority sisters? The data below show the number of volunteer hours worked for thirteen randomly selected fraternity brothers and eleven randomly selected sorority sisters. Brothers: 14 7 11 13 9. 11 8 12 7 13 10 13 Sisters: 13 19 16 11 11 19 5 10 16 17 7 | d. The p-value is ? O a e. Based on this, we should Select an answer the null hypothesis. f. Thus, the final conclusion is that ... The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude that the population mean volunteer hours for fraternity brothers is less than the population mean volunteer work hours for sorority sisters. The results are statistically insignificant at a = 0.05, so there is insufficient evidence to conclude that the population mean volunteer hours for fraternity brothers is less than the population mean volunteer work…
Scientists conduct a study to determine if the favorite primary color of people in Somewhere Ohio changed as a result of the earths going into a black hole. The observed and expected value tables are below. assume alpha =0.05 a. state the hypotheses b. Determine the chi squared statistic rounding to the nearest hundredth and the p-value c. make a decision d. draw a conclusion Observed Red Blue Yellow Total Before Black Hole 254 141 205 600 After Black Hole 139 114 147 400 Total 393 255 352 1000 Expected Red Blue Yellow Total Before the Black hole 235.8 153 211.2 600 After the black hole 157.2 102 140.8 400 Total 393 255 352 1000
FIll in the cells of a copy of the following table so that the two variables are Independent. Do the actual frequencies and those under the assumption of independence appear somewhat similar or quite different? Male Male Had Total Cheated Not Cheated Female Right 162 Female Wrong 41 Total 59 144 203
Consider the contingency table given below. Columns Rows 4 1 118 70 58 16 75 110 92 43 31 49 85 140 Use the contingency table to calculate the expected cell counts. (Round your answers to three decimal places.) Columns Rows 2 3 Calculate the value of the test statistic X for the chi-square test of independence. (Round your answers to two decimal places.) x? =
Participants threw darts at a target. In one condition, they used their preferredhand; in the other condition, they used their other hand. All subjects performed inboth conditions (the order of conditions was counterbalanced). Their scores areshown below.Preferred Non-preferred12 77 911 813 1010 9a. Which kind of t-test should be used?b. Calculate the two-tailed t and p values using this t test.c. Calculate the one-tailed t and p values using this t test.
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
cen the othe tral wor 24. A researcher conducts a study comparing two dif- ferent treatments with a sample of n = 16 partici- pants in each treatment. The study produced the following data: study an mean nu tolerate Treatment 1: 6 7 11 4 19 17 2 5 9 13 6 23 11 4 6 1 tions. D tolerance Treatment 2: 10 9 6 61 11 8 6 3 2 11 1 127 10 9 Particip a. Calculate the mean for each treatment. Based on the two means, which treatment produces the higher scores? 2. b. Calculate the median for each treatment. Based on the two medians, which treatment produces the higher scores? 3. 4. 5. c. Calculate the mode for each treatment. Based on the two modes, which treatment produces the higher scores? L 0. 6
Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table Drive-thru Restaurant C 232 39 A B Order Accurate 337 261 Order Not Accurate 33 52 If one order is selected, find the probability of getting food that is not from Restaurant A. D 134 20 The probability of getting food that is not from Restaurant A is (Round to three decimal places as needed.).
When a group of subjects entered a room, researchers recorded both the color of shirt worn by thesubject, and whether or not the subject smiled. The results are recorded below. With 0.05significance, test the claim that color of shirt and smiling are independent. Use your calculator.Smiled No SmileGreen Shirt 15 10Blue Shirt 13 7Yellow Shirt 5 8
Dr.Blume has trained observers to use frequency recording to record the behavior of 12 schizophrenic clients. According to the analysis of the data κ = 0 . 47, do you think the observers are sufficiently trained to allow Dr. Blume to proceed with the research?
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	A	B	C	Row Total
1	10	35	45	90
2	35	45	55	135
Column Total	45	80	100	225