Consider the following hypotheses tests involving the ?2-distribution. (a) Determine the p-value for Ho: P(1) = P(2) = P(3) = P(4) = 0.25, with ?2 = 10.44. (Give your answer bounds exactly.) _____< p < ___ (b) Determine the p-value for Ho: P(I) = 0.25, P(II) = 0.40, P(III) = 0.35, with ?2 = 7.72. (Give your answer bounds exactly.) _____< p < ____

Consider the following hypotheses tests involving the ?2-distribution. (a) Determine the p-value for Ho: P(1) = P(2) = P(3) = P(4) = 0.25, with ?2 = 10.44. (Give your answer bounds exactly.) ___< p < _ (b) Determine the p-value for Ho: P(I) = 0.25, P(II) = 0.40, P(III) = 0.35, with ?2 = 7.72. (Give your answer bounds exactly.) _< p <

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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The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the level of significance is (a) a = 0.01, (b) a=0.05, and (c) a=0.10. P= 0.0545 (a) Do you reject or fail to reject H, at the 0.01 level of significance? O A. Reject H, because the P-value, 0.0545, is less than a= 0.01. O B. Fail to reject H, because the P-value, 0.0545, is greater than a = 0.01. O C. Fail to reject H, because the P-value, 0.0545, is less than a = 0.01. O D. Reject Ho because the P-value, 0.0545, is greater than a = 0.01,
Consider the following hypothesis test. H0: μ ≤ 12 Ha: μ > 12 A sample of 25 provided a sample mean x = 14 and a sample standard deviation s = 4.24. (a) Compute the value of the test statistic. (Round your answer to three decimal places.) ______________ (b) Use the t distribution table to compute a range for the p-value. p-value > 0.200 0.100 < p-value < 0.200 0.050 < p-value < 0.100 0.025 < p-value < 0.050 0.010 < p-value < 0.025 p-value < 0.010 (c) At α = 0.05, what is your conclusion? Reject H0. There is insufficient evidence to conclude that μ > 12. Reject H0. There is sufficient evidence to conclude that μ > 12. Do not reject H0. There is insufficient evidence to conclude that μ > 12. Do not reject H0. There is sufficient evidence to conclude that μ > 12. (d) What is the rejection rule using the critical value? (If the test is one-tailed, enter NONE for the unused tail. Round your answer to three decimal…
You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the following frequencies:Ho : pA=0.4; pB=0.2p pC=0.3 pD=0.1Complete the table. Category ObservedFrequency ExpectedFrequency SquaredResidual A 54 B 44 C 48 D 22 What is the chi-square test-statistic for this data?χ2=Report all answers accurate to three decimal places.VERY IMPORTANT NOTE: Answers are reported to 3 decimal places, but you should use all the decimal places to calculate the final chi-square test statistic...DO NOT use the rounded number you report in the table.
Based on these results for a two-tailed test with a t-2.89 and a t -3.36 we O reject H, tail to reject Ho O accept Ho O reject He
A sample of n = 7 scores has a mean ofM 5. After one new score is added to the sample, the new mean is found to be M 6. What is the value of the new score? (Hint: Compare the values for EX before and after the score was added.)
solve all pls. solve all two pls
Need help in part B
Q1. A psychologist conducted a study on the relationship between introversion and shyness. The values are results for scales of introversion and shyness. High positive scores on each scale indicate high introversion or shyness; and high negative scores indicate low introversion or shyness. Data collected from 10 people as follows: Introversion 4 -7 -1 0 6 7 -4 -9 -5 8 Shyness 11 -7 -1 -3 0 7 -1 -8 -1 5 a) Compute the correlation coefficient relating introversion and shyness scores. b) Find the regression equation which predicts introversion from shyness. c) What introversion score would you predict from a shyness score of 7?
10.21. In a recent study involving a random sample of 300 automobile accidents, the data were classified according to the size of the automobile. Small Medium Large At least one fatality 42 35 20 No fatalities 78 65 60 With these data, does the frequency of accidents depend on the size of the automobile? Use α = 0.05.
You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the following frequencies:Ho : pA=0.2 pB=0.3; pC=0.1; pD=0.4Complete the table. Category ObservedFrequency ExpectedFrequency SquaredResidual A 38 B 41 C 10 D 57 What is the chi-square test-statistic for this data?χ2=Report all answers accurate to three decimal places.VERY IMPORTANT NOTE: Answers are reported to 3 decimal places, but you should use all the decimal places to calculate the final chi-square test statistic...DO NOT use the rounded number you report in the table.
Q1. An anthropologist wants to collect data to determine whether the two different cultural groups that occupy an isolated Pacific Island grow to be different heights. The results of his samples of the heights of adult females are as follows Do these samples constitute enough evidence to reject the null hypothesis that the heights of the two groups the same? Set alpha to .05.