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The cord passing over the two small pegs A and B of the square board is subjected to a tension of 100 N. Determine the required tension P acting on the cord that passes over pegs C and D so that the resultant couple produced by the two couples is 15N.m acting clockwise. Take θ =15°
An insurance company looks at the records for millions of homeowners and sees that the mean loss from ?re in a year is μ = $300 per person.
Exponential distribution with a mean of 4 minutes. What is the probability that a person is served in less than 3 minutes on at least 4 of the next 6 days?
An employee of the records of ce at a certain university currently has ten forms on his desk awaiting processing. Six of these are withdrawal petitions and the other four are course substitution requests.
Using a three month moving average, what would the forecast and MAD have been for July? Which forecasting method would you recommend? Why?
A sample of 35 different HR departments found that employees worked an average of 240.6 days a year. If the population standard deviation is 18.8 days
A random sample of 20 one-way fares during particular month had a mean of $210 with a standard deviation of $43. At 0.02, is there sufficient evidence to conclude a difference from the stated mean?
Estimate using three day weighted moving average. Estimate sales for the next day using a three-day weighted moving average where the weights
1. For each of the following functions decide whether or not the function is a linear transformation. Prove your answer in each case :
a concessions manager at the tech versus aampm football game must decide whether to have the vendors sell sun visors or
Consider the following joint probability distribution for uncertain quantities X and Y:
a production process that fills 12-ounce cereal boxes is known to have a population standard deviation of 0.009 ounce.
The distribution of meansdistribution and the distribution of means, showing the t score and cutoff points for significance. (c) Explain your answer to someone who has never taken a course in statistics.
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