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A basketball coach wants to know how many free throws an NBA player shoots during the course of an average practice. The coach takes a random sample of 43 players and finds the average number of free throws shot per practice was 225 with a standard deviation of 35. Construct a 99% confidence interval for the average number of free throws in practice.
if two voters are randomly selected for a telephone survey, what is the probability that they one is a Democrat followed by a Republican? Round your answer to 4 decimal places.
john sullivan bought a new brunswick boat for 17000. he put a 2500 down payment on it. the banks loan was for 60
What decision would be made if the researcher used a one-tailed test with an alpha level of .05? (Assume that the herb is expected to increase scores.)
Using the confidence interval method, test the claim that the average age of consumers is at least 30 years ( α= 0.05). Test the same claim by using the test statistics method ( Z or T test).
a study asked 1009 adults which causes of death they thought would likely become more common in the future. 70 stated
suppose it has been observed that touchdowns scored in a game by your favorite football team are poisson random
Fifteen weeks later we learn that Jasmine did, indeed, pass the course. What is the probability that she was enrolled in Professor Normal"s section?
dr. mack lemore wishes to estimate the proportion of people who buy items they know are defective from thrift shops
Someone gives you 10 to 1 odds that you cannot roll a double number with the roll of a pair of dice. You win $10 if you succeed and you lose $1 if you fail. What is the expected value of the game for you? What can be expected if you play 100 times..
a researcher wishes to know with 98 confidence the percentage of women who wear shoes that are too small for their
q1 use the normal approximation to the binomial to find the probability of x 20 when n 30 and p 0.5.q2 of
the amount of time spent watching television or playing video games is considered a significant factor on predicting
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