A gambler is conducting a hypothesis test to determinewhether a coin is fair. He has computed a test statistic of 0.What does that imply?o He got the same number of heads as tails.o He made a computational mistake, since a teststatistic cannot be 0.o His null hypothesis is false.o He made a Type I error.9:02 PMearch99+44°F Cloudy11/23/202120

Solution Given a gambler is conducting a hypothesis test to determine whether a coin is fair. He has…

Answered: A gambler is conducting a hypothesis…

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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If you reject H_0: p ≥ 0.9 in a one-tailed test at the 0.05 level then you would definitely Select one: a. None of other answers is necessary true. b. reject H_0: p ≤ 0.9 in a one-tailed test at the 0.05 level. c. reject H_0: p ≥ 0.9 in a two-tailed test at the 0.01 level. d. reject H_0: p = 0.9 in a two-tailed test at the 0.01 level. e. reject H_0: p ≤ 0.9 in a one-tailed test at the 0.01 level
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2. Forty-five percent of the entering CSUN freshmen in Fall 2019 were proficient in math. www.csun.edu/counts/new_first_time_freshman.php a. You want to see if the percentage is different for this fall's entering freshmen. Your hypotheses are Ho: На: where p stands for the percentage of freshmen who were proficient in Fall 2019 / this fall. b. Suppose that the null hypothesis is true that the percentage is 45% for this fall. Here is the sampling distribution of the values of p that would be expected if you repeatedly took random samples of 150 freshman entering this fall and found the proportion proficient in math. From the sketch alone, estimate the mean and the SE 0.33 0.37 0.41 0.45 0.49 0.53 0.57 If the null hypothesis is true, would it be unusual to get 50% in your sample who were proficient in mathematics? Explain: If the null hypothesis is true, would it be unusual to get 45 freshmen in your sample who were proficient in mathematics? Explain: c. You take a random sample of 150…
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Chapter 6, Section 4-HT, Exercise 217 - MathPad Football Air PressureDuring the NFL’s 2014 AFC championship game officials measured the air pressure on game balls following a tip that one team’s balls were under inflated. We found that the 11 balls measured for the New England Patriots had a mean psi of 11.10 (well below the legal limit) and a standard deviation of 0.40. Patriot supporters could argue that the under inflated balls were due to the elements and other outside effects. To test this the officials also measured 4 balls from the opposing team (Indianapolis Colts) to be used in comparison and found a mean psi of 12.63, with a standard deviation of 0.12. There is no significant skewness or outliers in the data. Use the t-distribution to determine if the average air pressure in the New England Patriot’s balls was significantly less than the average air pressure in the Indianapolis Colt’s balls.Let group 1 and group 2 be the air pressure in the New England Patriot’s balls and…

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