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A previous analysis of paper boxes showed that the the standard deviation of their lengths is 13 millimeters. A packer wishes to find the 95% confidence interval for the average length of a box. How many boxes does he need to measure to be accurate within 4 millimeters?
A. 11
B. 58
C. 41
D. 29
Which combination of factors has greatest likelihood of rejecting null hypothesis?
Extra college-level training, and rest of the sailors arn't accounted for. How does your sample compare to what you expected to determine? Define null hypothesis.
the frequencies of different blood types of 200 people who volunteered at a plasma center is given in the table.blood
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It would like to be plus or minus $10 of the true mean with a 98% confidence level. The standard deviation is thought to be $500. How many card holders should be sampled?
an experiment was performed to investigate the keyboard feel on a computer crisp or mushy and the size of the keys
the estimated cost for a national poll is 10 per person interviewed. a project has a budget of 15000 for the poll. the
Standard deviation of 1.4 inches. What is the probability that the average length of a steel from a sample of 36 is more than 27.65inches long?
You roll two fair dice, one red and one green. What is the probability of getting a number less than 5 on both?
What is the predicted GPA if a person watches 12 hours of television per week?
A newspaper finds that the mean number of typographical errors per page is five. Find the probability that:
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