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It is a common belief that Yellowstone's most famous geyser erupts once an hour at very predictable intervals. The histogram below shows the time gaps (in minutes) between 222 successive eruptions. Describe this distribution.
ann is waiting in line at the dmv. her waiting time is described by the random variable x in minutes with the following
Find the probability (type answer as an integer or simplified fraction) of a couple having a baby boy when their fifth child is born, given that the first four children were all boys.
Machine X test unit cost $3000 with beta=3 and theta=500, Machine Y test unit cost $2000 with beta=3 and theta=400. If the machines oil fixtures has life of 20 hrs, which machine goes to market first?
In general how is the magnitude of the standard error of estimate related to the value of correlation?
The population mean annual salary for first year faculty at SLU is $47,000. Assuming that the population standard deviation is $1800:
The data show the time intervals after an eruption (to the next eruption) of a certain geyser. Find the regression equation, letting the first variable be the independent (x) variable. What is the regression equation
researchers studied the effects of adding an exercise program to dieting in the achievement of weight loss. a sample of
The following data give the diffusion time (hours) of a silicon wafer used in manufacturing integrated circuits and the resulting sheet resistance of transfer:
Five horses are running in a race. I bet that Hot Shot will win first place, and Urawinner will win second. What is the probability that I will win?
He randomly samples 45 oil wells throughout the United States and determines the mean output to be 10.7 barrels per day with a standard deviation of 1.3 barrels. Test the researcher's claim at the .025 level of significance.
Construct a 98% confidence interval for the population mean and interpret the result (round margin of error E to the nearest dollar).
Wildlife biologists believe that the weights of adult trout can be described by a Normal model.- What mean and standard deviation should define the model?
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