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A hospital obtains 40% of its flu vaccine from company A, 50% from company B and 10% from company C. From past experience its known that 2% of the vials from A are ineffective, 1% from B are ineffective and 4 % from C are ineffective. The hospital tests five vials from each shipment. If at least one of the five is ineffective, find the conditional probability pf that shipment's having come from C.
The sample mean is 2.59 and the sample standard deviation is .66. Conduct the following test using 95% level of confidence.
Suppose that a study based on a sample from a targeted population shows that people at a pizza restaurant are hungrier than people at a coffee shop. Make an interference based on the results of the study.
If random samples, each with n = 4 scores, are selected from a normal population with MK = 80 and o=10
The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
Florida State University administers a mathematics placement test to students where they 1st enter the university.
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
At the Statsville County Fair, the probability of winning a prize in the ring-toss game is 0.1. Show the probability distribution for the number of prizes won in 8 games.
Calculated test statistic at the 5% level of significance and An airline claims that 65% of its flights depart on time.
Make up the ages of a group of participants who are freshman, sophomores, juniors, and seniors. You will need the age of 10 participants across each level.
Determine the upper and lower control limits for ?- (This Symbol Is Supposed to be an x not an a) and R-charts for the width of a chair seat when sample grand mean
In optimal solution, determine minimum time needed to complete project?
For a normal distribution, the probability of randomly selecting a z-score greater than z = -2.00 is p = .0228.
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