Compute speed of boat in still water
The speed of the stream is 6 mph. If the boat travels 72 miles downstream in same time that it takes to travel 36 miles upstream, compute speed of boat in still water?
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Provide a 90% confidence interval for the mean number of months students at this university date before becoming engaged.
Due to rush hour traffic, fire truck is only able to travel an average of 12mph. Determine minimum amount of time it will take fire truck to reach car fire?
Sales for boxes of Girl Scout cookies over 4-month period were forecasted as follows: 100, 120, 115, and 123. The actual results over 4-month period were as follows: 110, 114, 119, 115. What was the MAD of four month forecast?
Second bus arrives at Goanna Creek at same time as first bus. Determine how far is Goanna Creek from Townsville?
If 130 of 200 male voters and 88 of 150 female voters favor the certain candidate running for president, determine a 99% confidence interval for difference between the actual proportions of male and female voters who favor the candidate.
He wishes to maximize area of the patio (area of the rectangle is length times width). What must dimensions of patio be, and illustrate how maximum area of patio is computed from algebraic equation.
If the null hypothesis is accepted if and only if observed value of the random variable is less than 3, find the probabilities of type I and type II errors.
Assume the time it takes data collection operator to fill out electronic form for the database is uniformly between 1.5 and 2.2 minutes. Determine the mean and variance of the time it takes an operator to fill out the form?
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