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In a large clinical trial of 500 patients treated with a new drug, 40 reported sideeffects how many patients would need to be sampled to estimate the desired proportion to within a margin of error of 1%, using 98% confidence?
Height of men have a mean of 69.6 inches and standard Dev of 2.8 inches. If 64 men are randomly seleted, find the probabilty that they have a mean greater than 70.6 inches.
The hypotheses for this scenario are as follows: Null Hypothesis: μ ≤ 21.61, Alternative Hypothesis: μ > 21.61. You perform a one sample mean hypothesis test on a random sample of data and observe a p-value of 0.0095. What is the appropriate concl..
use the given information to find the p value. also use a 0.05 significance level and state the conclusion about the
Explain your answer to someone who is familiar with the T test for a single sample, but not with the T test independent means.
in this section you will carry out the following basic estimation and tests of differences using the provided
someone claims that bergen county high school students on average score higher on the sat than high school students
The sheet EZDescription describes the variables for this question. The data are on unemployment claims in Anderson (IN) from 1980 through November 1988. In 1984, an enterprise zone ("EZ") was located in Anderson (as well as other cities in Indiana..
in a recent study of vietnam veterans researchers found that in a sample of 2101 veterans 777 had been divorced at
Researchers studying infant head circumferences (in centimeters) wish to test if the mean head circumference differs from the historical mean of 34.5 cm. The researchers obtain a sample of 17 infants with a mean head circumference of 34.16 cm and a s..
web crawlers need to estimate the frequency of changes to web sites to maintain a current index for web searches.
1. dan is working to get through his general education requirements at a local community college. as a result he is
Please show all steps to simplifying the rational expression.
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