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Interpret the confidence level given11.97 oz to 12.05 oz a particular type of diet cola advertises that each contains 12 oz of the beverage. Each supervisor selects 10 cans at random, measure their contents, and computes 95% confidence interval for the true mean volume. For one particular hour, the 95% confidence interval is
You randomly select 16 coffee shops and measure the temp of the coffee sold at each. The sample mean temp is 162 F with a sample std deviation of 10 F. Assume the temp are approx. normally distributed.
a.) Check the conditions for constructing a 95% confidence interval for the mean temp
b.) Find the 95% confidence interval for the mean temp
c.) Interpret the interval
What is the point estimate of the difference between the population mean expenditure for males and the population mean expenditure for females
An automobile parts supplier manufactures a cylindrical engine part. The part is supposed to have an outside diameter of four centimetres. Parts with diameters that are too large or too small will not fit properly within the engine and must be dis..
Find the probability that more than half felt that they were prepared.
What is the highest alpha value for which you could conclude that the observed average rate is not significantly different from $ 235?
compute the relevant pivot tables (from the training-set) using google-sheet, and translate them into conditional probabilities.
it is estimated that 3.6 of the general population will live past their 90th birthday. in a graduating class of 733
Sixty percent of employees of the xyz corporation are college graduate. Of these ,ten percent in sales.of the employee who do not graduate from college
Calculate a regression that examines whether or not you can predict if a student wants a lecturer to be extroverted using the student's extroversion score.
Suppose that 20% of all homeowners in an earthquake-prone area of California are insured against earthquake damage. Four homeowners are selected at random; let x denote the number among the four who have earthquake insurance.
If a resistance is adequately described by a Gaussian random variable for which mean = 1000; and standard deviation = 40;, what fraction of the resistance expected to be rejected?
The mean length of the conferences was 3.94 days, with a standard deviation of 1.28 days. Assume the underlying population is normal.
Suppose you take a random sample of 10 tickets without replacement from a box containing 20 red tickets and 30 blue tickets.
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