Use Tukey's HSD test A researcher randomly assigned post-surgical patients to receive one of three types of pain drug.After waiting for the drugs to take effect, he asked each patient to rate their level of pain on a 12-point scale,where higher numbers indicate greater pain. Analyze the results below using a one-way ANOVA and followthe 7 hypothesis testing steps you have been taught. Use an appropriate post hoc test if necessary.ArctusRetrylLocor2713.84412425

Given,Three types of pain drugs in a tabular form. To apply a) the ANOVA test and follow the 7…

Answered: A researcher randomly assigned…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A manufacturer is developing a nickel-metal hydride battery to be used in cellular telephones instead of a nickel-cadmium battery. The director of quality control decides to evaluate the newly developed battery by picking a random sample of employees with cellular phones and asking them to use both phones until the batteries run down. The results are given in the excel data file. At the 5% level of significance is there evidence that the new battery provides more minutes of talk time per battery charge? Show your work and give your answer in complete sentences in context of the problem. Data Table: Person Old Battery Type New Battery Type 1 72.39 89.95 2 75.25 64.60 3 82.10 71.25 4 58.98 87.07 5 67.07 103.11 6 35.98 76.46 7 75.37 83.92 8 66.00 83.42 9 73.14 84.30 10 67.14 92.48 11 83.06 93.48 12 57.00 59.11 13 65.92 92.27 14 76.12 61.81 15 85.21 72.83 16 80.73 42.17 17 60.65 83.89 18 36.63 94.41 19 77.98 70.30 20 75.40 77.72 21 84.70 84.35…
How many samples should be selected when the total population is 31 for goldfeld and quandt test to find the heteroscasticity??
A company that sponsors LSAT prep courses would like to be able to claim that their courses improve scores. To test this, they take a sample of 20 people, have each take an initial diagnostic test, then take the prep course, and then take a post-test after the course. The test results are below (scores are out of 100%): Person1234567891011121314151617181920Initial Test7368707979606880637865687367606277647069Post-Test7075767493566987778170817377637578706766 Is there evidence, at an α=0.01α=0.01 level of significance, to conclude that the prep course improves scores? Carry out a Wilcoxon signed rank test, filling in the information requested. (Arrange your data so that the standardized test statistic is for the change from the initial test to the post-test.) (a) The value of the test statistic: (b) The rejection region for the standardized test statistic: (c) Your decision for the hypothesis test:A. Reject HaHa.B. Reject H0H0.C. Do Not Reject H0H0.D. Do Not Reject HaHa.
Two types of valves are being tested to determine if there is a difference inpressure tolerances. Fifteen out of a random sample of 100 of Valve Acracked under 4,500 psi. Six out of a random sample of 100 of Valve Bcracked under 4,500 psi. Test at a 5% level of significance.
When they send out theirfundraising letter, a philanthropic organization typically gets a return from about 5% of the people on their mailing list. To see what the response rate might be in the future, they did a simulation using samples of size 20, 50, 100, and 200. For each sample size, they simulated 1000 mailings with success rate p=0.05 and constructed the histogram of the 1000 sample proportions, as shown in the accopmanying table. Explain how these histograms demonstrate what the Central Limit Theorem says about the sampling distribution model for sample proportions. Be sure to talk about center, shape, and spread. Fill in the blanks As the sample size increases, the center of the histogram ▼ (moves to the left), (moves to the right), (stays approximattly the same) the shape of the distribution ▼ (becomes more normal), (becomes less normal), (stays approximatley the same) and the variability in the sample proportions ▼ (decreases), (increases), (stays aproxamtley the…
A consumer group is investigating a producer of diet meals to examine if its prepackaged meals actually contain the advertised 6 ounces of protein in each package. Based on the following data, is there any evidence that themeals do not contain the advertised amount of protein? Run the appropriate test at a 5% level of significance. What is the p-value of the test?
. At the 5% significance level, determine if the model is useful for predicting the number of weekly riders on public buses. In responding, construct and test any appropriate hypothesis
A random sample of 170 donations at a certain blood bank reveals that 84 were Type A blood. Does this suggest that the actual percentage of Type A donations differs from 45%, of the population having Type A blood? A. State H0 and Ha B. Test the hypothesis using the P-Value approach at a significance level of 3%, and express your decision. C Based on the given data, determine the extreme value without rejecting the H0.
A medical team wanted to learn if children between 5 and 17 years old in an area known for high lead contamination have higher lead concentrations in their blood than children between 5 and 17 years old in an area 20 miles away from the first area. (Note: Sampling revealed that lead is only present in the environment at extremely low levels in the second area.) After analyzing blood samples that were collected from children in both regions (under a protocol approved for high ethical standards), an (unpaired/randomized) t-test (data met the assumptions) resulted in a p-value of 0.423. Subsequently, one of the researchers noticed that by chance the ages of the children in the study happened to mean that there was exactly one child of each of the following ages at both of the locations: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 years old. Therefore, they were able to run a paired analysis, with blocking by age. The data met the assumption of the paired t-test, which yielded a p-value…
A researcher conducted a study skills course over a period of five days among a group of beginners, intermediate and advanced speakers of English. At the end of the programme, she administered a test to determine which group of students benefited from the programme. The results of the study was analysed using One-Way ANOVA and the results are shown in the tables below: See Table 1 and answer the following questions: Why was the Oneway-ANOVA used? What can conclude from the above table? State the assumptions for using the One-way ANOVA.
A consumer group is investigating a producer of diet meals to examine if its prepackaged meals actually contain the advertised 6 ounces of protein in each package. Based on the following data, is there any evidence that themeals do not contain the advertised amount of protein? Run the appropriate test at a 5% level of significance. I am confused about what the p-value is from the choices provided.
In order to determine whether a particular medication was effective in curing the common cold, one group of patients was given the medication, while another group received sugar pills. We are interested in determine whether the medication was effective in curing the common cold. The hypothesis is to be tested at the 5% level of significance

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