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A family has 5 children. The ages of these children are 1, 2, 5, 8, and 12.
(a) List the 10 possible samples of size n = 3.
(b) Use these samples to create dot plot showing the sampling distribution of the sample median age.
(c) List the 5 possible samples of size n = 4 and create the sampling distribution of the sample median using these samples.
(d) What effect does increasing the sample size have on the variability of the sampling distribution of the sample median? Justify your answer.
1. a large tank of fish from a hatchery is being delivered to a lake. the hatchery claims that the mean length of fish
suppose you know that the distribution of sample proportions of the residents of one town over 70 years old in samples
The diameter of Ping-Pong balls manufactured at a large factory is approximately normally distributed, with a mean of 1.30 inches and a standard deviation.
Describe the relationship you expect to find between each variable and any interactions among the variables. You may wish to include a rationale for your hypothesis.
Estimate the relative risk of neurological impairment for children exposed to secondary smoking, and calculate a 95% con?dence interval for this risk.
For this example, what specific test might you use to test whether the average number of offspring has changed over the years? Why would you use this specific type of test? Describe a brief scenario where you may need to use nonparametric statistic..
Let be a random variable with probability function f(x)=144/205x^ 2 , where x=1,2,3,4.
Her data consist of one BOD reading_ for each of several times t. She wants to estimate the parameters in the· equation.
For the normal distribution described in given Exercise, what tax preparation fee would have been exceeded by 90% of the tax preparation customers?
Describe the five steps of hypothesis testing. Compare Type I and Type II errors and give specific examples for each. Which error should be minimized the most and first?
Identify at your place of work (or a previous place of work, or an organization with which you are affiliated). Identify a dependent variable and 3 independent variables
Suppose a soccer team wins each of its games with probability 0.4, loses with probability 0.4, and ties with probability 0.2, with each game's
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