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A human resource manager at a large company wants to estimate the proportion of employees that would be interested in reinbursement for college courses. If she wishes to be 95% confident that her estimate is within 5% of the true proportion, how many employees would need to be sampled?
A. 1234
B. 646
C. 543
D. 385
E. 271
a sample of 400 racing cars showed that 80 of them cost over 700000. what is the 99 confidence interval for the true
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Compute the sample variance and the sample standard deviation for these data (to 2 decimals).
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a simple random sample of 100 postal employees is used to test if the average time postal employees have worked for the
what are the values of the 1 test statistic 2-3 critical values and the 4 smallest level of significance at which the
On average, you receive 2 telemarketing calls per day. What is the probability that you will not receive any telemarketing calls today.
The amounts of money requested on home loan applications at a particular bank follow the normal distribution, with a mean of $80,000 and a standard deviation of $24,000. A loan application is received during the day.
a new drug is being tested for its effecctiveness to treat a certain type of infection. it was effective for 125 cases
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What are the benefits and drawbacks of traditional and authentic assessments in math and science?
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