You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantlydifferent from 0.2. You use a significance level of a - 0.05Ho p 0.2H1: p 0.2You obtain a sample of size n = 336 1in which there are 61 successes.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic =What is the p-value for this sample? (Report answer accurate to four decimal places.)P-value =The p-value is..less than (or equal to) ogreater than aThis test statistic leads to a decision to.reject the nul1a

From the given information,Significance level is 0.05 and n = 336.Null and alternative hypothesis,

Answered: You are conducting a study to see if…

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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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 ≤ ___________
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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…
A myopenmath.com MyOpenMath Statistics Question | bartleby + O 41mins X You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly less than 0.47. You use a significance level of = 0.005. Ho:p = 0.47 H1:p < 0.47 You obtain a sample of size 739 in which there are 322 successes. What is the test statistic for this sample? (Report answer accurate to 3 decimal places.) What is the p-value for this sample? (Report answer accurate to 4 decimal places.) This test statistic leads to a decision to O reject the null accept the null O fail to reject the null As such, the final conclusion is that O there is sufficient evidence to conclude that the proportion of men over 50 who regularly have their prostate examined is less than 0.47. there is not sufficient evidence to conclude that the proportion of men over 50 who regularly have their prostate examined is less than 0.47. O there is sufficient evidence to conclude that the…
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MULTIPLE CHOICE We would like to assess if, on average, there is a significant difference in the amount time (in seconds) it takes to write a full name (difference = writing hand – non-writing hand) for all first-grade children in the US . The hypotheses are: H0: μd = 0 versus Ha: μd ≠ 0 and a 10% significance level is selected. After conducting the appropriate test, the researcher fails to reject H0 at a 10% significance level. Using the same data, which of the following intervals would be a reasonable 90% confidence interval for μd? [(-2.1, -.4), (.53, 4.7), or -.4, 1.3) ] ? The research prefers to use QQ plots over histograms for checking normality assumptions in general. How many QQ plots would the researcher need to make for this study? [1, 2, or 3] Alpha (?α ) is the probability of [incorrectly or correctly] concluding that μd ≠ 0.

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