Show at least one computation using Welch’s T Test and at least one computation using the 2-Sample T Test for Equal Means. 4LO56782.37580.40680.28180.438 The Problem: Members of the Town of Colonie Golfers' Loop frequentlyraise concerns to Mr. Lange, as its leader, about how the league is run. Themost frequent concern raised is that the teams competing each week are notstatistically even. In other words, members raise concerns that one or moreteams have a statistical advantage over other teams.To evaluate the validity of these claims, Mr. Lange has decided to use a mixof statistical hypothesis tests discussed in this course to evaluate the teamsfrom Outing #14 in calendar-year 2016 (2016, #14). One is the Equal Vari-ances F Test, one is Welch's T Test, and the other is the 2-Sample T Testfor Equal Means.In this particular outing, seven teams were competing for the win. A randomsample of eight prior scores from each team member was collected, and thesummary statistics are shown below (correct to three decimal places).Team Sample Size Sample Mean | Sample Variance12423233245673232323276.50079.65679.50082.37580.40680.28180.438To test for statistical evenness among these teams using the mix of tests wedescribed above, however, we will have to adjust the significance levels weare accustomed to using. Use the table on the next page to help you:If you are using...... use0.238%5%1% 0.048%0.1% 0.005%14.52218.23313.09747.98418.31411.04714.3831

The researcher is trying to determine whether a team has statistical advantage over other teams. We…

Answered: Show at least one computation using…

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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35) Using the Wilcoxon Signed-Rank Test with a = 0.05 you take a sample of n = 15.From the sample data you calculate a sum of the positive ranks T* = 89.5. What is thetest statistic for the hypothesis test?A) 2.33B) -1.96C) 1.96D) -1.65E) 1.65
To determine whether four populations are equal, a sample from each population was selected at random and using the Kruskal-Wallis test, H was computed to be 2.09. What is our decision at the 0.05 level of risk? Fail to reject the null hypothesis because 0.05 < 2.09 Fail to reject the null hypothesis because 2.09 < 7.815 Reject the null hypothesis because 7.815 is > 2.09 Reject the null hypothesis because 2.09 > critical value of 1.96 None of the above
4) Let x be a binomial random variable with n = 8, p = .6. Find: a) u = np b) o = bdu,
Suppose that a population consists of only 5 members and the values of are as follows. Member 1 2 3 4 5 Y 5 3 5 2 2 a) If a sample size of 3 is taken from the population through random sampling, how many ways can we select a sample? b) Enumerate all possible outcomes of a random sampling of size 3 (in a table). For each outcome, compute for the sample mean ( and sample variance. No need to show solution in this part
please answer by yourself amd use clear han dw r
Suppose 40 participants complete an experiment whero ads are presented subliminally during a task) ads are at very fast rates during movie ads)Participants are then given a recognition test of images of the ads, where two images are presented and participants must choose which of the two was presented earlierBoth men and women (20 of each gender) participate in the study and the researcher predicts that the recognition accuracy will offer across gender. The difference between the sample means in this study was 5%. The for the men was 350 and the the women was 250. What is your t value? A) 3 B) 4.69 C) 3.54 D) 4
6
A new process has been designed to make ceramic tiles. The goal is to have no more than 5% of the tiles be nonconforming due to surface defects. A random sample of 1000 tiles is inspected. Let X be the number of nonconforming tiles in the sample. a) If 5% of the tiles produced are nonconforming, what is P(X ≥ 75)? b) Based on the answer to part (a), if 5% of the tiles are nonconforming, is 75 nonconforming tiles out of 1000 an unusually large number? c) If 75 of the sample tiles were nonconforming, would it be plausible that the goal had been reached? Explain. d) If 5% of the tiles produced are nonconforming, what is P(X ≥ 53)? e) Based on the answer to part (d), if 5% of the tiles are nonconforming, is 53 nonconforming tiles out of 1000 an unusually large number? f) If 53 of the sample tiles were nonconforming, would it be plausible that the goal had been reached? Explain.
1) What type of data are collected for each sample (categorical or numerical)? How many samples have been selected? Answer these questions in one sentence each. 2) Have the samples been collected independently or dependently? Answer the question and provide a reason why in one sentence 3) Define the population parameter in the context of this question in one sentence 4) State the hypotheses you would use to test the claim stated in the question.
The mean weight of male dancers in a local modern dance company is at most 160 Ibs. Express the null and alternative hypotheses in symbolic form for this claim. Ho:4 Use the following codes to enter the following symbols: enter >= enter <= enter !=
William ' s Pizzeria is interested in whether the new menu designed by including ingredients in their pizza that are supposed to boost immunity during COVID-19 pandemic helps reduce average order time of the customers. Suppose that the average order time prior to the introduction of the menu was 1.2 minutes. Write the hypotheses for a left-tailed test using previous average order time.

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