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Give a brief definition and an example of the following:
a. Descriptive Statistics
b. Inferential Statistics
Find out the crude death rate, age specific death rate, standard death rate and adjusted death rate.
Construct a 96 percent confidence interval for the mean weight of all firefighters six months after the exercise rooms were installed.
At 0.01 significance level can we conclude that mean fare has increased? Determine the p-value?
Both days have sample standard deviations of 3.4. Is the average mean of size different from day 1 to day 2?
The sales manager had predicted, before the business started, that year 1's sales would be 410 air conditioners. Using exponential smoothing with a weight of alpha = 0.30, develop forecasts for years 2 through 6.
A business owner decides to use a binomial distribution to solve one of his problems.
On average, the size of the difference between the sample mean and the population mean is predicted by:
Suppose there is no cyclical component. Quarterly billing for water usage is shown below describe summer billing for year 5.
Fitting of simple linear equation - Prepare an equation showing how daily sales are related to number of customers per day.
If 25 men aged 18-24 are arbitrarily chosen, determine probability that their mean serum cholesterol level is between 165 and 200.
A recent study reported that the prevalence of hyperlipidemia (defined as total cholesterol over 200) is 30% in children 2-6 years of age. If 12 children are analyzed,
A contractor developed a multiplicative time series model to predict the number of contracts in future quarters, using quarterly data on number of contracts during the 3-year period from 1996 to 1998.
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