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An office has the following types of employees.
Female
Male
Administrative
20
21
Managerial
12
10
Operational
42
38
If one person from the office is chosen at random, what is the probability that the person is: (a) a male administrator, (b) a female manager, (c) male, (d) an operator, (e) either a manager or an administrator, (f) either a female administrator or a female manager?
If and are the proportions of all college males and females correspondingly, who worked last summer, the z statistic (±0.01) for a test comparing the proportions of college men and women who worked last summer is??
If the standard deviation of the amount of coffee dispensed is 0.4oz and the amount of coffee dispensed is normally distributed.
How much should you be willing to pay for this deal? Do you think you would actually pay that much? Why? Expected Value:? Pay it? Why?
Find the percentage of such males that weigh between 190 and 210 lb. (Note: Make sure you choose the flag value closest to 190 and 210.) Give the proportion as a decimal rounded to thousandths.
If no calls are currently being processed, what is the probability the agent can take 3 minutes for personal time without being interrupted?
Compute a 3-month moving average forecast of demand for April through January (of the next year).
What is the probability that the device will detect at least one of the two shoppers entering together?
You wish to find out if negative relationship exists between amount of bottled water someone drinks and their water bill. Create a prediction model, if suitable.
From past experience, an automobile insurance company knows that a given automobile will suffer a total loss with probability .02, a 50% loss with probability .08, or a 25% loss with probability .15 during a year.
Find the critical value, t0, to test the claim that the mean1>mean 2. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below. Assume that standard deviation 2/1 is not equal standard devi..
For many years TV executives used the guideline that 30 percent of the audience were watching each of the prime-time networks and 10 percent were watching cable stations on a weekday night.
Given the following data from two independent samples, conduct a one-tailed hypothesis test to determine if the first sample mean is larger than the second sample mean, given a 0.05 level of significance.
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