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One of the major measures of the quality of service provided by an organization is the speed with which the organization responds to customer complaints. A large family-held department store selling furniture and flooring, including carpet, had undergone a major expansion in the past several years. In particular, the flooring department had expanded from 2 installation crews to an installation supervisor, a measurer, and 15 installation crews. A business objective of the company was to reduce the time between when the complaint is received and when it is resolved. During a recent year the company received 50 complaints concerning carpet installation. The number of days between the receipt of the complaint and the resolution of the complaint for the 50 complaints. 54 535 137 31 27 152 2 123 81 74 27 11 19 126 110 110 29 61 35 94 31 26 5 12 4 165 32 29 28 29 26 5 1 14 13 10 5 27 4 52 30 22 36 26 20 23 33 68. Construct a frequency distributionand a percentage distribution. Construct a histogram and a percentage polygon. Construct a cumalitve percentage distribution and plot a cumalative percentage polygon (ogive).
If θ1 and θ2 are unbiased estimators of θ, show that θ3=k1θ1+ k2θ2 is biased estimator of θ. What condition must be imposed on constants k1 and k2, so that θ3 is an unbiased estimator of θ?
a hat contains n coins f of which are fair and b of which are biased to land heads with probability 23. a coin is drawn
Make a decision – For the purpose of this discussion, you will make a conclusion based on the hypothetical results from Step 4. Be sure to include a recommendation on the effectiveness of the new drug based on the results.
The alternative hypothesis is true. In this case the consumer advocacy group will have, A consumer advocacy group doubts this claim and tests the hypotheses
A random sample of 50 engineers of a large technology company that the sample mean is 34.4 year. assume that the population standard deviation is 8 years.
Suppose we approximate the demand of a randomly selected ATM user by the Normal distribution
The current advertising campaign for a major automobile brand would be changed if fewer than 70 percent of the consumers like it.
Given the following data on hotel check-ins for a 6-month period:
If 28% of the residents play poker and garden and 70% of the residents play both shuffleboard and poker, then find the probability that a resident plays poker, given that they garden.
let x be a random variable with mean 3 and variance 2 and let y be a random variable such that for every x the
If a person were to be hit by lightning, they have a 33 percent chance of being killed. Find the odds that a person will be killed if struck by lightning.
1 according to a recent study 1 in every 10 women has been a victim of domestic abuse at some points in her life.
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