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A study examined possible reasons for students going on academic probation. Students who spent more than 20 hours a week playing video games were classified as "heavy gamers." Of the 342 students on academic probation in the study, 127 were found to be heavy gamers. p^=.371
Referring to the previous question, consider the distribution of all sample proportions p^ when the sample size is 342. Calculate the mean and standard deviation of this distribution, assuming that p=0.4
suppose ben records the noon temperature in new york city on every day in the month of june and frank records the noon
In a sample of 47 adults selected randomly from one town, it is found that 9 of them have been exposed to a particular strain of the flu. Find the P-value for a hypothesis test to determine whether the proportion of all adults in the town that hav..
Describe the qualitative variable summarized in the table. Give the categories associated with the variable.- Are the numbers in the table frequencies or relative frequencies?
in estimating the cost of a pile of bricks measured as 2m15m1.2mthe tape is stretched 1 beyong the standard length if
If X and Y are infinite sets with the same number of elements, show that the following conditions are equivelent for a function f: X-->Y:
a random variable x has a uniform distribution between 4 and 14. find the probability that the random variable will
To estimate the prevalence of HIV, the State of New York implemented a policy of testing women who gave birth. The test that was used is known as ELISA; it is actually a test for the HIV antibody. Assume that ELISA has a sensitivity of 0.998 and a sp..
Construct a 98% con?dence interval for the mean change in heart rate. Assume that the population has a normal distribution. Interpret your answer.
A summary of material transactions for November shows the following transactions: Prepare journal entries to record these transactions.
Think of an important characteristic that you would look for in a potential romantic partner, such as humorous, intelligent, attractive, hardworking, religious, and so on.
Your company manufactures low calorie frozen dinners. The advertised calorie content is 200 calories. A consumer activist group, FACT: fat and calories tribunal, is claiming that your product is not consistent.
In this problem, we will analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product
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