You are conducting a Goodness of Fit hypothesis test for the claim that all 5 categories are equally likely to beselected. Complete the table.CategoryA=BCDEObservedExpectedFrequency Frequency1221171824ContributionTo TestStatisticWhat is the chi-square test-statistic for this data?x=Report all answers accurate to three decimal places.

The objective of this question is to calculate the contribution to the test statistic for each…

Answered: You are conducting a Goodness of Fit…

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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You are playing a dice game with a friend and become suspicious that he is using weighted dice. So you stop the game, take one of his dice, and roll it 100 times. The results are in the table below. Do these results provide significant evidence that the proportion of times the dice lands on the six numbers are unequal? Calculate the chi-squared test statistic and the range the p-value falls in for this test. Number on die 1 2 4 Frequency 16 21 6 26 13 18 test statistic = 14.12, p-value in (.01, .025) test statistic = 24.368, p-value in (.005, .01) test statistic = 14.12, p-value in (.025, 05) test statistic = 24.368, p-value less than .005 O none of these
An education researcher claims that at most 3% of working college students are employed as teachers or teaching assistants. In a random sample of 300 working college students, 5% are employed as teachers or teaching assistants. At a = 0.05, is there enough evidence to reject the researcher's claim? (c) find the standardized test statistic z.
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1413 referee calls, with the result that 426 of the calls were overturned. Women challenged 742 referee calls, and 228 of the calls were overturned. Use a 0.05 significance level to test the claim that men and women have equal success in challenging calls. Identify the test statistic. z= ? (Round to two decimal places as needed.) Part 3 Identify the P-value. P-value= ? (Round to three decimal places as needed.) Part 4 What is the conclusion based on the hypothesis test? The P-value is ▼ greater than or less than the significance level of α=0.05, so ▼ fail to reject or reject the null hypothesis. There ▼ is not sufficient or is sufficient evidence to warrant rejection of the claim that women and men have equal success in challenging calls. Part 5 b. Test the claim by constructing an appropriate confidence interval. The 95% confidence…
Ramos has a spinning wheel. The Spining wheel has 18 blue numbers 18 white numbers and 2 yellow numbers the table provided shows the frequency with which the ball landed on each color in 200 trials. color blue frequency 18 white frequency 18 yellow frequency 2 . At the 5% significance level do the data suggest that the wheel is out of balance?you will need to compute the expected counts to do your calculations remember that the expected counts can be computed with the formula E = np, where n is the number of trials and P is the probability of each color.
You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4 categories occur with the following frequencies:HoHo : pA=0.4 pB=0.3 ; pC=0.15 ; pD=0.15Complete the table. Report all answers accurate to three decimal places. Category ObservedFrequency ExpectedFrequency Residual A 44 B 34 C 32 D 19 What is the chi-square test-statistic for this data?χ2=For significance level alpha 0.1, what is the chi-square Critical Value?Critical Value = What would be the conclusion of this hypothesis test? Reject the Null Hypothesis Fail to reject the Null Hypothesis Report all answers accurate to three decimal places
Data set 18 includes "attractive" ratings of male dates by the female dates. The summary statistics are n=199, x-6.19, s-1.99. Use a 0.01 significance level to test the claim that the population mean of such ratings is less than 7 Find H, and H₁ for this claim. O Ho: mean>7, H1: mean-7 Ho: mean7 Ho: mean-7, H1: mean<7 2
0 123 ess is functioning properly. significance. 5 workers from one company But a general perception is 1 of significance mnle 6.32 Jeffery, a high school swimmer, swims the 25-yard freestyle with a mean time of 16.43 seconds without using goggles. After his father bought him goggles, Jeffery swam the 25-yard freestyle 15 times. After the 15 swims, Jeffery's mean time was 16 seconds and sample standard deviation was 2 seconds. His father thought the goggles helped Jeffery swim faster. Test his father's hypothesis using a 5% level of significance. Assume that the sample of measurements are from a normally distributed population. 6.30 suburb.
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You are interested in investigating whether gender and major are associated at your college. The table below shows the results of a survey. Math/Science Arts/Humanities Business/Econ. Other Men 76 109 73 49 Women 82 96 93 34 What can be concluded at the αα = 0.01 significance level? What is the correct statistical test to use? Independence Homogeneity Goodness-of-Fit Paired t-test What are the null and alternative hypotheses?H0:H0: The distribution of college major is the same for each gender. College major and gender are independent. College major and gender are dependent. The distribution of college major is not the same for each gender. H1:H1: College major and gender are independent. The distribution of college major is not the same for each gender. College major and gender are dependent. The distribution of college major is the same for each gender. The test-statistic for this data = (Please show your answer to three decimal places.) The p-value for…
You are conducting a multinomial Goodness of Fit hypothesis test for the claim that all 5 categories are equally likely to be selected. That is: �0: ��=��=��=��=�� Complete the table. Report all answers correct to three decimal places. Category ObservedCount ExpectedCount ComponentValue A 7 B 21 C 19 D 9 E 15 What is the chi-square test-statistic for this data?�2= What is the �-value?�-value = For significance level �=0.005, what would be the conclusion of this hypothesis test? Reject the Null Hypothesis Fail to reject the Null Hypothesis Report all answers accurate to three decimal places.
The data below show sport preference and age of participant from a random sample of members of a sports club. Is there evidence to suggest that they are related? Tennis Swimming Basketball 18-25 68 100 88 26-30 110 93 52 31-40 90 88 69 Over 40 68 66 49 What can be concluded at the αα = 0.10 significance level? What is the correct statistical test to use? Goodness-of-Fit Homogeneity Independence Paired t-test What are the null and alternative hypotheses?H0:H0: Age and sport preference are independent. Age and sport preference are dependent. The age distribution is the same for each sport. The age distribution is not the same for each sport. H1:H1: The age distribution is the same for each sport. Age and sport preference are dependent. Age and sport preference are independent. The age distribution is not the same for each sport. The test-statistic for this data = (Please show your answer to three decimal places.) The p-value for this sample =…

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