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When using the normal approximation to the binomial, what is the standard deviation for a binomial probability distribution with p =.3 and n = 145?
the lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15
Provide an example and state the Null and the Alternative hypothesis for the example in symbolic form.
A production process manufactures items with weights that are normally distributed with mean 16 pounds and standard deviation 0.15 pound. An item is considered to be defective if its weight is less than 15.8 pounds or greater than 16.2 pounds.
Flu cases this past fly season in the Central City school system were about 15 per week. For the entire state, the weekly average is 16 and the standard deviation, 2.35. Are the kids in Central City as sick as the kids throughout the state?
Explain, to a person who has never had a course in statistics, what you have done. (c) Note the ways in which the means and standard deviations differ.
the number of yearly breakdowns for the power generator observed over the past 20 years at orlando utilities is
an automated blood-pressure machine correctly classifies 87 of hypertensives as having hypertension high blood pressure
A sample of 50 customers resulted in a sample mean of $90. What is the probability of obtaining a sample with a sample mean smaller than $90?
What would be a good example of a null and alternative hypotheses for a decision relevant in life? What Type I and Type II errors could occur with your decision-making process?
describe in words and statistical terms the relationship between the number of years in education and corresponding
if 20 of the residents in a u.s. city prefer a white telephone over any other color available what is the probability
Given that standard deviation process=4.7 and standard deviation gage=3.4, what is the total standard deviation in data from this process?
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