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The average number of calories in a 1.5 ounce chocolate bar is 225 calories. Suppose that the distribution of calories is approximately normal with o = 10. Find the probability that a randomly selected chocolate bar will have a) Between 200 and 220 caloies.
Describe how a domestic fast food chain with plans for expanding into China would be able to use a forecasting model.
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
Harry's hamberger is a restaurant where customers form a single line for 1 cashier. The average numbers of arrivals is 1 per minute and the Poison distribution accurately defines this rate.
The distribution of IQ scores is normal, what proportion of the population would score higher than Bob? Lower than Bob?
Determine the probability distribution associated with these data.
Lab technicians at a major mdical lab can process an average of 400 blood samples a day with a standard deviation of 50 samples. The processing follows a normal distribution.
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.
Compute b1, slope of an OLS regression line using dollars spent as dependent variable (Y) and age as independent variable (X).
If X and Y are infinite sets with the same number of elements, show that the following conditions are equivelent for a function f: X-->Y:
How can the binomial distribution be used in a business situation? What type of data would you use and what would you learn from this?
Assume you want to estimate the population proportion,p, and the estimator for the mean proportion (p-hat)= 0.34, N = 6000, and n = 1300. Find an approximate 95% confidence interval for p.
A quality control engineer wants to check if a particular product meets the specification of 90% of the entire product shipped is in perfect condition. He randomly selects a sample of 10 items of the product from a large lot ready to be shipped.
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