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Many states are carefully considering steps that would help them collect sales tax on items purchased through the internet. How many randomly selected sales transactions must be surveyed to determine the percentage that transpired over the internet? Assume we want to be 95% confident that the sample percentage is within three percentage points of the true population percentage for all sales transactions.
What percentage of observations of a normal distribution are represented by the mean plus or minus 1.96 standard deviations?
You are conducting a study on what socio-demographic factors could be behind the behavioral problems of students. You are looking at how many times a student was sent to detention. You have information on race, gender, household median income, single..
1.which slope is more significant when i am predicting the selling price of homes based on the size of the home?a. 64
At 5% level of significance, does this sample prove violation of guideline that average patient must pay no more than $250 out-of-pocket? Write your hypotheses and decision rule.
What is the actual formula for finding the exact probability from the z-score without having to use the table?
The animals are ordered from a supply company, housed in an animal care facility not under the direct control of the experimenter, and are supplied on an as-needed basis.
a study showed that 36 out of 120 students of usc watched the football game between usc and usf. which one can be a
in order to determine how many hours per week freshmen college students watch television a random sample of 256
the owner of a fast-food restaurant has found the daily demand for ground beef at her restaurant to be normally
suppose that n units are randomly sampled and x number of the sampled units are found to have the characteristic of
How could the engineer increase the accuracy of the interval without changing the level of confidence?
Ppurpose of determining the roommates. If the pairing is done at random, what is the probability that there are no offensive-defensive roommate pairs?
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