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If you want to be 95% confident of estimating the population proportion to within a sampling error of (plus or minus 0.05 ) and there is historical evidence that the population proportion is approximately 0.37, what sample size is needed?
abc manufacturing has 6 machines that perform a particular task. breakdowns occur frequently for these machines. past
Correlation rule states that if X and Y are correlated, X has caused Y.
Assuming the manufacturer's claim is true, what is the approximate probability of observing a sample mean of 52 months or less?
An experiment is designed to test the effectiveness of a specific type of gender selection process, using 15 couples trying to have baby girls.
a random sample of 33 adult men had a mean weight of 182.5 pounds and a standard deviation of 22.5 pounds. find a 99
How would you define Incidence Rate
A manufacturer claims that fewer than 6% of its fax machines are defective. In a random sample of 97 such fax machines, 4% are defective. Find the P-value for a test of the manufacturer's claim.
if given a random sample size from a normally distributed population the mean of the sample and the standard
Prepare a three-paragraph discussion of the relationship between p-value, test statistic, level of significance, and critical value.
A demonstration to verify that an item meets its reliability requirement is based on obtaining 5 successful tests. If the probability of a successful test is 0.9, find the probability that 10 tests will be required to pass the demonstration.
Assume x is normally distributed with mean u=15 and standard deviation 0=3. Use the approximate areas beneath the normal curve, as discussed in this section, to answer the following questions.
there are 2r 2r is less than or equal to n gloves randomly chosen from n distinct pairs of gloves i.e. 2n gloves in
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