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The estimator or appreciative of the population proportion must be between 0.10 more or less, with a confidence level of 99%. The best estimator or appreciative of the population proportion is 0.45. How large must the sample be?
Determine the sample size needed in order to be 99% confident that the sample proportion of the current customer accounts is within .03 of the true proportion of all current accounts for this company.
Compute the score based on their appropriate class means and standard deviations:
Make a forecast for 2004, using either the fitted trend model or a judgment forecast. Why is it best to ignore earlier years in this data set?
A bank's loan officer rates applicants for credit. The ratings can be described by a Normal model with a mean of 200 and a standard deviation of 50.
The standard deviation of the time to complete the entire homework assignment
Determine the distributions given below represent a probability distribution. Justify your answer.
To find out the alternate hypotheses also critical value. A truck dealer claims where a new model will give trouble free service for at least 15,000 miles.
Determine mean and standard deviation for number of erroneous returns per batch.
When combining probabilities, to find the probability of one event AND another event, the separate probabilities should be:
Recognize independent variable and dependent variable for this experiment. Think in your head what influences what? Or, what causes what? Cause is independent variable.
The credit score of a 35 year old applying for a mortgage at Ulysses Mortgage Associates is normally distributed with a mean of 600 and a standard deviation of 100.
He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
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