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Weights in kilograms of boys at the start of 1st grade are approximately normal with mean 25, standard deviation 5. Find the z-score for each of the following weights, and characterize it as "very light," "somewhat light," "somewhat heavy," or "very heavy."
a. 31.7 kilograms
b. 47 kilograms
c. 24 kilograms
What is the probability that the next two tracts sold will be in Newburg Woods? What is the probability that of the next four sold at least one will be in Holly Farms? Are these events independent or dependent?
Prepare a short letter to the manufacturing manager at Dragon Wood Furniture discussing the effectiveness of the sampling process that her company is using.
In given problem, suppose the possible values for x are now 0, 2, 4 with the same probabilities as before. Will the standard deviation increase, decrease, or stay the same?
Calculate 95% and 99% confidence intervals for m. Using the 95% confidence intervals, can we be 95% confident that m is a least 50 pounds? Explain.
question suppose that we have two events a and b with pa.50 pb.60 and pa union b .40a. find pa i bb. find pa i
Tom Smith wants to test the hypothesis that adult men have a mean weight that is greater than 150 pounds. Tom surveys the adult male members of his family and obtains 40 sample values
identify the types of samples- systematic cluster convenience random stratified1. a sample was taken of every 49th
Determine whether or not each of the given pairs of random variables are independent:- Find the value of the constant c in terms of L .
Using the applet with the target correlation r = 0, make a plot that has a curvilinear pattern for which the correlation is 0.
karen wants to advertise how many chocolate chips are in each big chip cookie at her bakery. she randomly selects a
What is the first assumption for ANOVA? Is it likely that the researchers met this assumption? Explain your answer.
for the same sample data and null hypothesis how does the p-value for a two-tailed test of mu compare to that for a
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