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A fish tank in a pet store has 23 fish in it. 8 are orange and 15 are white. Determine the probability that if we select 4 fish from the tank, at least 2 will be white.
Draw a scatter diagram and consider the correlation for the provided data. Do larger universities tend to have more property crime.
The regression of Y on X predicts? When predicting Y, adding a second predictor variable to the first predictor variable X.
Using one proportion z test to find whether or not to support the claim - There is little evidence to reject H 0 , therefore they conclude the tvs are 20 pounds on average.
Conduct a one-sided hypothesis test of the claim that corner-lot houses have higher average selling prices than those located on non-corner lots.
For population with mean of µ=60 and a standard deviation of s=24. Determine the z score corresponding to each of following samples.
Women in the U.S. Air Force have hands that are 6.9 inches on the average (from the tip of the middle finger to the heel of the hand). The standard deviation is 0.34 inches. Assume that hand length is normally distributed.
Calculate the arithmetic mean age of the uninsured senior citizens to the nearest hundredth of a year. Identify the median age of the uninsured senior citizens
What happens to the confidence interval and the power of the test at a particular point of interest. As one increases the sample size of a test, all else remaining the same.
randomly pick up 5 cards from a deck of 52 cards. find the probability that the third card is red if the first card is
In a survey about satisfaction with local phone service, those respondents who rated their current service as excellent and those who rated it Poor-Very Poor were asked to classify their current local service provider. The results are given in the..
A researcher is testing the effect of a new cold and flu medication on reaction time. A sample of n = 9 students is obtained and each student is given the normal dose of the medicine.
While purchasing a home, location is everything. As a buyer, one should be aware of the cost of living in the area of choice, as well as expect a higher cost the closer to the center of town you get.
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