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Fifty-seven percent of families say that their children have an influence on their vacation plans. Consider a sample of eight families who are asked if their children influence their vacation plans. Identify the values of n, p and q, and list the possible values of the random variable x.
Possible test scores ranged from 0 to 500. Assume that the scores are normally distributed. What is the probability that a student had a score higher than 315?
Suppose that the census indicates the average American earns $36,345.45 per year. You are interested in the whether people who majored in political science earn an amount that is different than the average American.
suppose iq scores were obtained from randomly selected twins. for 20 such pairs of people the linear correlation
Let* is similar to let, except that the bindings of the let variables are performed sequentially from left to right, and each binding is made in an environment in which all of the preceding bindings are visible. For example
winning the jackpot in a particular lottery requires that you select the correct four numbers between 1 and 33 and in a
Compute the five number System for this data set and list Xmin,Q1,Q2,Q3 & Xmax. See Videos and show how the pointer was computed for each quartile. (15%)
a sample of size 80 is to be used to test the hypotheses h0 mu29 vs. ha mugt29where mu is the true average age of a man
Using symbols mention null hypothesis and alternative hypothesis.
When studying simultaneous responses to two categorical questions, we should set up a a) contingency table. b) frequency distribution.
Determine whether the description corresponds to an observational study or an experiment. Thirty university students are divided into two groups, one group receives free tutoring in mathematics, the other does not.
It is estimated that 2% of the athletes competing in a large tournament are users of an illegal drug to enhance performance. The test for this drug is 95% accurate. What is the probability that an athlete who tests positive is actually a user?
a clinical trial tests a methods designed to increase the probability of conceiving a girl. in the study 540 babies
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