1. Indicate whether you believe the statement to be true or false. T FBessel\'s

Question

1. Indicate whether you believe the statement to be true or false. T FBessel's correction is necessary to ensure that sample variance is an unbiased estimator of the population variance. T FYou should always select a one-sided alternative hypothesis unless you have a good a priori reason for doing otherwise. T F Greek letters are used for means and standard deviations when we speak of populations while Roman numerals are used for samples T FThe p-value approach" is a relatively recent development in hypothesis testing and depends upon the advent of widely available statistical and spreadsheet software T T T F "Accept Ho" is really shorthand for "fail to reject the null hypothesis." F The type of lock used for school and gym lockers would be more properly called a permutation lock. FSuppose X is any continuous random variable and that Y is any discrete random variable. Then P(X = 11 Y* 1) 0. T FSuppose a 5-member graduate student council is to be selected from 75 students. The first person selected would be the chairperson while the other members have no special responsibilities or T FNonparametric tests generally have lower power than parametric tests; that is to say, there is a higher T FSuppose you have two samples, each with 13 values. If the two samples are independent, then the T FThe multinomial distribution is a generalization of the hypergeometric distibution and assumes powers. There are over 25,000,000 possible councils. probability of making a Type II error than in a c test statistic follows a t distribution with 12 degrees of freedom. sampling with replacement so that probabilities remain constant from one trial to another traditional test.

Explanation / Answer

Answering the first four subparts :

1) True

2) False

3)False

4)False

5)True ,that failure to reject H0 does not mean the null hypothesis is true. There is no formal outcome that says “accept H0.” It only means that we donot have sufficient evidence to support H1

6)

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