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17.65 The production engineer for the manufacturing plant in Exercise 17.61 has just included another vari- able: the worker's gender, coded as 1 5 female and 0 5 male. File XR17065 contains the expanded set of data. With y 5 productivity (units/hour), x1 5 number of units in the backlog area, and x2 5 gender, fit a first- order model with no interaction term. Interpret the par- tial regression coefficients and the R2 value. At the 0.02 level, is the model significant?
17.66 The sales director for an industrial supplies firm has collected information describing the performance and personal characteristics of 80 members of her sales force. The data in file XR17066 include the percent of sales quota the salesperson achieved last year, age, number of years with the firm, and personal appearance (very neat, about average, or a little sloppy). In the data file, a very neat person is coded as neat 5 1, average 5 0, a person of average neatness is coded as neat 5 0, average 5 1, and a sloppy person is coded as neat 5 0, average 5 0. With y 5 percent of sales quota, perform a linear regression using the other variables as predic- tors. Interpret the partial regression coefficients and the R2 value for the model. At the 0.05 level, is the model significant?
explain what each part of the following statistical phrase means as it would be reported in apa format t4 2.87
What is the mean of the sampling distribution of the (sample proportion) and what is the standard deviation of the and describe the sampling distribution of p
The passing grade such that the probability of passing a student who guesses on every question is less than 0.10. What score should be set as the lowest passing grade?
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estimations is what we are looking. estimating means and proportion determining the necessary sample size to obtain
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question nielsen monitor-plus a service of nielsen media research is one of the leaders in advertising information
A random sample of 121 checking accounts at bank showed an average daily balance of $280 the standard deviation of the population is known to be $6. Find the standard error of the mean.
statistics - degrees of freedom independent two sample test?a independent two-sample test with n134 and n242 would have
A silver dollar is flipped 100times, with the following results: Heads =57, tails=43. What test should be used to determine if this is a fair coin?
What percent of the New York City commutes are for less than 29 minutes?
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