QUESTION 10Suppose the cutoff z score on the null distribution is Zcrit = +1.99. You could reject the null hypothesis if the sample zScore wasO 2.16O -2.86O 1.23O -2.68QUESTION 11"Given the scenario below, what is the critical value? Americans typically take off 5 sick days each year, with a standarddeviation of 2 days. A researcher would like to know whether psychiatrists take off less sick days than the averageAmerican. The researcher obtains a sample of 16 psychiatrists who, on average, take 3 days of sick leave a year. Test thisresearcher s hypothesis using an alpha level of .0i. “O 1,96O 1,9O 1,64O -2.33QUESTION 12"Given the obtained statistic is t=-1.8, alpha = 0.05, 1 tail (Sample < pop). There were 21 subjects. What is the decision?"O Reject Alternative HypothesisO Retain Alternative HypothesisO Retain Null HypothesisO Reject Null HypothesisQUESTION 13A binomial (sign) test is most appropriate when:O you are comparing less than 2 groupsO you are comparing a population to sample meanO you are flipping a coinO you are comparing more than 2 groups

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Suppose the cutoff z score on the null distribution is Zcrit = +1.99. You could reject the null hypothesis if the sample z score was O 2.16 -2.86 O 1.23 O -2.68

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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