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A company owns 400 laptops. Each laptop has an 8% probability of not working. You randomly select 20 laptops for your salespeople.
(a) What is the likelihood that 5 will be broken?
(b) What is the likelihood that they will all work?
(c) What is the likelihood that they will all be broken?
For the following data, determine whether or not right-hemisphere damage results in significantly reduced performance on the spatial skills task. Test with alpha set at .05 with one tail. The data are as follows:
Other group (drawing 6 slips without replacement from among 45). What is the probability that at least one of the shifts will be unrepresented in that sample of workers?
For a normal random variable X with mean 70 and standard deviation 10. Calculate the probability that 60 80}.
Mean and standard deviation are 584.6 and 34.28
Illustrate the maximum number of reservations that it could accept for a flight with a capacity of 160, if it needs the probability of accommodating all reservation holders to be at least 95%.
When modelling E(y) with single qualitative independent variable, number of 0 - 1 dummy variables in model is equal to number of levels of qualitative variable.
If a single test is run and indicates that oil is present, what is the revised probability that oil is actually present?
Also, 77 percent of managers have MBA degrees. Using probability formulas, determine proportion of employees who either have MBAs or are managers.
Mr. Connors philosophy class has 99 students, classified by academic year and gender, as illustrated in the table below. Mr. Connor randomly chooses one student to collect yesterday's work. What is the probability that he selects a male, given tha..
Compute the correlation among the variables. Describe perfect correlation also negative correlation. Utilize the following data to answer questions related.
Serum ferritin is used in diagnosing iron deficiency. In a study conducted recently researchers discovered that in a sample of 28 elderly men the sample standard deviation of serum ferritin was 52.6 mg/L. For 26 younger men the sample standard dev..
A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national rate is 20%.
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