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Consider a set of test grades with a mean of 80 and a standard deviation of 3. Use Chebyshev's Theorem to find the percent of data that would fall between 74 and 86.
A. at least 88.9%
B. 100%
C. at least 75%
D. at least 93.8%
Using the value in the given data table finding the missing values
when solving for the sample size required to estimate p to within a particular margin of error under what circumstances
A summary of material transactions for November shows the following transactions: Prepare journal entries to record these transactions.
a researcher was interested in determining the effect of an experimental drug on the lifespan of laboratory rats.
A sample of the math test scores of 35 fourth-graders has a mean of 82 with a standard deviation of 15.
At the end of a year the change in participants' blood pressure over the year was measured, and the change was compared for the two groups.
a bridge hand thirteen cards is dealt from a standard 52-card deck. let a be the event that the hand contains 4 aces
what is the difference between standard normal distribution and t-distribution?could anyone help me this
A sample of 40 observations is selected from one somewhat normal population. The sample mean is 102 and the sample standard deviation is 5.
Construct a 95% confidence interval for the proportion of red candies. Using your same data determine if the proportion of green candies in a package of M&Ms is differen than what is claimed by the company.
A newspaper ad for a manager trainee position contained the statement "Our manager trainees have a first-year earnings average of $20,000 to $24,000." Do you think that the ad is describing a confidence interval? Explain your answer.
a study is run comparing hdl cholesterol levels between men who exercise regularly and those who do not. the data are
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