Twenty-four mice are inoculated with three strains of typhoid. The number of days until death for eachmouse is recorded. Do these data suggest any significant differences in the survival time for the threestrains? Test at an a = 0.10 significance level.The null hypothesis is Select an answerThe alternative hypothesis is Select an answerWith a p-value of 0.017, we Select an answerthe Select an answerThere isSelect an answer evidence to conclude that there are significant differences in the survival time for thethree strains.

The information provided in the question are as follows :- Sample size (n) = 24 Types of typhoid…

Answered: Twenty-four mice are inoculated with…

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 grocery store says their mangoes are fresher than most. A typical grocery store has roughly 10% go bad before they sell. A random sample of 135 mangoes from the store showed that 13 of the mangoes were rotten. Assume we have a significance level of 0.05. 1. null hypothesis____________ the alternative hypothesis is__________ 2. Our z-test statistic is 3. Our p-value is 4. evidence supporting the alternative?
A comparison between species: Biologists wish to compare the prevalence of a genetic mutation across two species of Neema Toads. In a sample of 6 Neema Toads of Species I, 0.8% had the mutation while in a sample of 14 Neema Toads of Species II, 0.7% showed the mutation. Is there significant evidence to suggest a difference in the prevalence of the mutation across the two species? Conduct a hypothesis test at a significance level of α=0.01α=0.01.a) The hypotheses for this test are: H0: pI - pII = 0Ha: pI - pII ≠ 0 H0: pI - pII = 0Ha: pI - pII < 0 H0: pII = 0.008Ha: pII ≠ 0.008 H0: pI - pII = 0Ha: pI - pII > 0 What is the test statistic for this test?test statistic = (Report answer accurate to 2 decimal places.)What is the p-value for this test?p-value = (Report answer accurate to 4 decimal places.)The decision reached is Fail to reject H0 Reject H0 and accept Ha As such, the final conclusion is that The prevalence of the mutation is the same for both species. There is…
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 282 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 54 124 178 Not Vaccinated 71 33 104 Total 125 157 282 Copy Data Step 7 of 8: Make the decision to reject or fail to reject the null hypothesis at the 0.025 level of significance.
Test the claim that the proportion of men who own dogs is smaller than the proportion of women who own dogs at the .005 significance level. Based on a sample of 80 men, 40% owned dogsBased on a sample of 80 women, 60% owned dogs Critical Value = Test Statistic = Based on this do we reject the null hypothesis or fail to reject the null hypothesis?
Poverty in Alaska vs Hawaii. If we have 26 out of 350 families in Hawaii that were below the poverty time, and if we random select 300 Alaska families, we find 35 families below the poverty line. At the 1% significance level, do the data provide sufficient evidence to conclude a difference in the proportion of families below the poverty line for Alaska and Hawaii? Based on the hypotheses, find the following:Test Statistic = _____________p-value = ______________ Find a 99% confidence interval for the difference in proportion of families below the poverty line in Alaska and Hawaii. ______≤ p1 - p2 ≤ ___________
Use Tukey's HSD test
Thumbs-up is a popular and new soft drink company in India. The company wants to test the market for its product. A sample of 500 individuals participated in the taste test and 125 indicated that they like the taste. We would like to test if more than 20% of the population will like the new soft drink. For alpha=95% confidence, test the hypothesis.
You want to see if a card dealer is favoring one suit over another. You observe the dealer pick a card, put it back in the deck, shuffle, and then repeat the process 288 times. The results are displayed in the table below. Use an αα = 0.10 significance level. outcome frecuency expected frequency spades 48 hearts 72 diamonds 87 clubs 81 The degrees of freedom = ______ The test-statistic for this data =______(3 decimal places) The p-value for this sample =-________( four decimal places.) The p-value is ______α Based on this, we should_______ Thus, the final conclusion is... There is insufficient evidence to conclude that the distribution of suits is not uniform. There is insufficient evidence to conclude that suits and cards are dependent. There is sufficient evidence to conclude that the distribution of suits is uniform. There is sufficient evidence to conclude that suits and cards are dependent. There is sufficient evidence to conclude that the…
HW10Q9
Question Help v Listed below are the lead concentrations in ug/g measured in different traditional medicines. Use a 0.01 significance level to test the claim that the mean lead concentration for all such medicines is less than 18 ug/g. Assume that the sample is a simple random sample. 12.5 17.5 22 6.5 18 18 16 19 6.5 D Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? Ο Α. Ho μ 18 μga H,: µ#18 ug/g O B. Ho: = 18 ug/g H;: µ 18 ug/g O D. Ho: u> 18 µg/g Η : μ< 18 μg Determine the test statistic. |(Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. V Ho. There is evidence to conclude that the mean lead concentration for all such medicines is V 18 μg g. ? Click to select your answer(s). MacBook Ai DII 80 888 F7 FS FA F3 esc F2 & de 23 %24 8 5 6 7 2 3 4 1 P U Q W E 11 J K F G I

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