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A medical clinic in a small city in the state of Washington wants to estimate the mean serum cholesterol level (measured in mg of cholesterol per 100 mL of blood) of teenage males. Based on the following summary data taken from a random sample of 10 teenage males from this community, compute a 90% confidence interval for the mean serum cholesterol level of teenage males in this city. Assume that the sample was taken from a normal distribution. Round your confidence limits to 2 decimal places. Summary Data: n = 10, {x}bar=223.562, s = 24.920
estimate the population mean based on a sample of size 25 for which the average is 100 and the standard deviation is
Determine the mean and the standard deviation of the sample.
customers arrive at a bakery at an average rate of 6 per half-hour. each customer spends an average of 2.50.a what is
Telephone interviews were conducted on a representative sample of 1,003 adults living in the United States. For this sample, 506 adults admitted that they have paid to download music
to boost holiday sales a jewelry store in bismarck north dakota is advertising the following promotion if more than
find the margin of error for the given values of cs and n c0.80 s4 and n8the margin of error is round to one decimal
A survey is planned to determine the mean annual family medical expenses of employees of a large company. The management of the company wishes to be 95% confident that the sample mean is correct to within plus-or-minus $50 of the population mean.
create a time plot from the treasury bill returns data. here again just use the data. you need not answer the book
a sample of 148 college students at a large university reports getting an average of 6.85 hours of sleep last night
question a group of 11 people are going to the movies one saturday. adult tickets cost 10.50 each and child tickets
the rent for a one-bedroom apartment in southern california follows the normal distribution with a mean of 2075 per
Construct a 95% confidence interval for the difference M1-M2 between the mean spending on prescription allergy relief medication (M1).
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