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In a sample of n = 36 selected from a population, where X = 96 and S = 12, what is the value of tSTAT if you are testing the null hypothesis H0: µ = 100.
What does n, x, and s represent?
Assume you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information you have.
Downtown Fish Company believes that it has a market share of 25%. They survey n = 100 fish owners and ask whether or not Downtown fish is their regular brand of Fish food, of which 23 people say yes.
Identify the sampling distribution to be used: the standard normal distribution or the Student's t distribution. Find the critical value(s).
At the .05 significance level, is the number of units produced on the afternoon shift larger?
Let the random variable X represent the number of defective DVD players among 200 randomly selected DVDs of this type. Does the random variable X have a binomial distribution or a Poisson distribution?
Number of farms (X) and the average size of a farm (Y) in the United States between 1950 and 1997. Specifically, generate a simple linear regression model and interpret it.
Let x equal the number of cells activating the alarm when the temperature reaches 100F. Find the expected value and the variance for the random variable x.
what does P10, P20, P30, P40, and P95 mean
The animal colony in the reseach department contains 20 male rats and 30 female rats. Of the 20 males, 15 are white and 5 spotted. Of the 30 females, 15 are white, and 15 are spotted.
Using smoothing constant of w = .80, compute the value of exponentially smoothed series in 1983.
A store has determined that 25% of all sales are credit sales. A random sample of 75 sales is selected. What is the probability that the sample proportion will be:
What does the binomial distribution chart look like? Can I use Excel to come up with this chart?
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