Three brands of reducing pill were tried on a sampleof 8 female adults. The data are given on the followingtable in terms of weight loss in pounds.Reducing Pll UsedBRespondentA4.53.23.024.13.02.833.6383.24533.93.64.84.23.5273.13.5434.0293.83.336Test the bypothesis that there is no signilicantdifference in the average weight loss in pounds amongthe three groups of respondents using the three brandsof reducing pills at 0.01 level

Answered: Image /qna-images/answer/ee7f3cdc-47b5-4c49-804d-72bc9b8a6d35.jpg

Answered: Three brands of reducing pill were…

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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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.
How many samples should be selected when the total population is 31 for goldfeld and quandt test to find the heteroscasticity??
People who were born between 1978 and 1983 are sometimes classified by demographers as "Generation Y". According to a Forrester Research survey published in American Demographics (Vol. 22(1), p. 12), of 850 Generation Y Web users, 459 reported using the Internet to download music. At the 5% significance level, does the data provide sufficient evidence to conclude that a majority of Generation Y Web users use the Internet to download music? Use the One-Proportion z-test and interpret your result.
The following facts on the comparison of sorbic acid were obtained from a study conducted by the Department of Nutrition. residuals in hotdogs in parts per million soon after dipping in a sorbate solution and after 60 days storage were documented. Given that the two are normally distributed. Is there enough evidence, at the 0.05 level of significance, to say that sorbic acid residual concentrations are affected by storage time using paired sample T- test?
The sales rep of a waterbed claims that 25% of the Filipino died because of cardiovascular diseases. A researcher wants to test this claim. A hospital record shows that out of a random sample of 200 dead patients, 55 patients died because of cardiovascular diseases. Does the data provide sufficient evidence to support the claim of the sales rep? Use 0.03 level of significance.
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?
A quality control expert at a local dairy claims that its cartoons contain more than 64oz of milk a sample of 15 cartoons reveals a mean of 65 and 1.1 oxs respectively. At the 1% level, does the appropriate hypothesis support his claim? find and interpret the p value
A store that sells LPG claims that the mean weight of their tanks are exactly 11-kgs as prescribed. Using a random sample of 15 LPG tanks, a regular customer tests the theory that the average weight of the store's tanks are somehow lower than the prescribed weight. Use a significance level of α=0.10
From the sample statistics: x1=41, n1=100; x2=35, n2=140. Find the appropriate p-value used to test the hypothesis that the population proportions are equal using a significance level of 0.05. Note: Use four decimal places.
The police chief selects a sample of 49 local police officers from a population of officers with a mean physical fitness rating of 72 ± 7.0 (μ±σ) on a 100-point physical endurance rating scale. He measures a sample mean physical fitness rating on this scale equal to 74. He conducts a one-independent sample z test to determine whether physical endurance increased at a .05 level of significance.
The following table shows results from a General Social Survey on belief in the afterlife, classified by gender. Conduct all steps of a significance test, using α = 0.05, to compare the population proportions of females and males who would respond yes to belief in an afterlife? What was the estimated proportion of males wbo believe in the afterlife? What was the estimated standard error of males who believe in the afterlife? What is the estimated difference in proportion between males and females who belief in the afterlife? State the null and alternative hypothesis in the context of this study.
Five samples of a ferrous-type substance were used to determine if there is a difference between a laboratory chemical analysis and an X-ray fluorescence analysis of the iron content. Each sample was split into two subsamples and the two types of analysis were applied, with the accompanying results. Assuming that the populations are normal, test at the 0.05 level of significance whether the two methods of analysis give, on the average, the same result. Determine the test statistic t=?

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