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Hypothesis testing of single mean.
Dole Pineapple, Inc., is concerned that the 16-ounce can of sliced pineapple is being overfilled. Assume the standard deviation of the process is .03 ounces. The quality control department took a random sample of 50 cans and found that the arithmetic mean weight was 16.05 ounces. At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p-value.
Given length an athlete throws a hammer is a normal random variable with mean 50 feet and standard deviation five feet, what is the probability he throws it: Between 50 feet and 60 feet.
Find the range and the standard deviation of the times.
Suppose the manufacturers claim is right, determine the probability the mean of sample is 47,840 miles or less?
A bank's loan officer rates applicants for credit. The ratings can be described by a Normal model with a mean of 200 and a standard deviation of 50.
Drawing the standard normal curve and indicating the area representing the probability and
The random variable x is known to be uniformly distributed between 1.0 and 1.5.
To test whether the significant difference between two sample variance using F-tests.
Write down the name of 4 parts of the regression equation.
A researcher uses hypothesis test to estimate H0 µ= 80. Which combination of factors is most probable to result in rejecting null hypothesis?
Assuming the nurses surveyed were a simple random sample from the population of all nurses in the United States, find the appropriate null hypothesis for these data
Does this result support original claim, or is population percentage considerably less than 45%. Use alpha=.05 for level of significance.
Sampling variability refers to the idea that different samples will include different individuals
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