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Question: Suppose you are an operations manager for a plant that manufactures batteries. Give an example of how you could use descriptive statistics to make better managerial decisions. Give an example of how you could use inferential statistics to make better managerial decisions.
Briefly discuss probability distributions. What is a normal distribution? Please provide a written example of how 'understanding distribution' can be an asset for any business project.
The following indices: z, t, F, r, Chi square. Using the data below, show that analyses using each of the three statistics yields the same or similar outcomes.
you interview a random sample of 50 adults. the results of the survey show that 46 of the adults said they were more
association we know association does not imply causation but what does this mean in your own words. provide and discuss
Problem 1: The following table shows the regression output of a multiple regression model relating the beginning salaries in dollars of employees in a given company to the following predictor variables:
Suppose researchers have just discovered a new version of a diagnostic blood test. Data from 100 subjects were collected. Sixty of the subjects were known healthy patients and 40 had liver disease. The test results are given below.
Normal Approximation to the Binomial
On average 2.4 customers per minute arrive at an airline check-in desk during the peak period. Assume that the distribution of arrivals is Poisson. Then T the time between 2 arrivals will be exponential. What is the probability that a customer will..
one sample is selected to represent scores in treatment 1 and a second sample is used to represent scores in treatment
Calculate the Average yield per acre, calculate the Standard deviation and explain the difference between a one sample and a two sample hypothesis test; provide an example of each.
Assuming this is normally distributed, what is the probability that a customer will receive a cup containing less than 13 ounces of beer?
A measurement systems experiment involving 20 parts, three operators, and two measurements per part is shown in the Table 8E.10. (a) Estimate the repeatability and reproducibility of the gauge.
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