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There is a 0.05 probability of thunderstorms in a major U.S. city. If there is a thunderstorm in that city, the probability is 0.28 that a flight departing that major city will be late. However, if the weather is clear in that major city, the probability is only 0.03 that a flight departing from that city will be late. If a flight departing from that major city arrives late in its destination city, what is the probability that there was a thunderstorm in that major departure city?
A. 0.33
B. 0.014
C. 0.043
D. 0.93
If random samples, each with n = 4 scores, are selected from a normal population with MK = 80 and o=10
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.
Set up dummy coded dummy variables to contrast each of the other groups to Group 2, medium Anxiety; run a regression to predict exam performance (Y) from these dummy coded dummy variables.
You've two separate sets of data. From one set you calculate the standard error to be 500. From the other set, the standard error was 5.
In, addition, the company has decided to purchase at least three of the new Econo-Tankers for use on short-run, low-demand routes. As a final constraint, the conpany deos not want more than half the new models to be Super Tankers.
A random sample of 100 oranges is gathered and the mean diameter obtained was 5.12. If another sample of 100 is taken, what is the possibility that its sample mean will be greater than 5.12 inches.
At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
Given that a particular student tests negative for stress, what is the probability that the test results are correct, and that this student is not overstressed?
A recent study of 75 workers found that 53 people rode the bus to work each day. Find the 95 percent confidence interval of the proportion of all workers who rode the bus to work.
Choose the correct answer using sum of squared error (SSE).
The useful life of an electrical component is exponentially distributed with a mean of 2500 hours. a. What is the probability the circuit will last more than 3,000 hours.
Calculate the standard deviation for this data = since it is a case of grouped data with classes. use group or class midpoints in the formula in place of x values.
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