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Sixty percent of the employees in a certain department are female. One third of the females drive foreign cars. The rest drive domestic cars. Twenty-five percent of the males in the department drive foreign cars. One person is randomly selected from the departmental files. Use this information to construct a probability table, and then calculate each of the following probabilities: P(foreign car)
Sales manager wishes to award sales representatives who earn the largest commissions a bonus of= $1,000 .He can award bonus to 20% of representatives. Determine cutoff point between those who earn bonus and those who don't?
Draw a normal probability plot for residuals using excel or Minitab. Do the residuals seem normally distributed? If yes, why?
On randomly selected day, let X and Y, respectively, be proportions of time that the drive-in and walk-in facilities are in use. Determine the marginal density of X.
Perform a hypothesis test by using.04 level of significance to find out if there is a difference between the population means.
The random variable X has which of the following probability distributions and What is the probability that no student wins
A 95% confidence interval for the proportion of all adults who bought a lottery ticket in the past year is (assume Gallup used an SRS)
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
First explain what the Gini coefficient is and what hypothetical Gini values of 0 and 1 mean. Sort the data by the Gini coefficient in 2000 and look at the list of countries.
The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast
Given that Vacationer will travel less than 500 miles, Find out the probability that he/she will drive or take the Bus/Train?
Iit is known that signal change in this brain area is normally distributed with mean of 35 and standard deviation of 10. By using .01 level, what must researcher conclude?
The weight of the first orange minus the weight of the second orange) is a random variable with standard deviation and individual outcomes are uncertain but happen in a predictable manner through time.
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