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According to the Texas Department of State Health Services, there are approximately 17.7 million adults (age 18+) living in Texas, of which 1.29 million have diabetes. In 2010, 377,251 adult Texans were diagnosed with diabetes for the first time. What is the incidence of diabetes in Texas? Express your answer in units of per 1000 persons per year.
Based on a simple random sample of one hundred an analyst estimates the average hourly wage earned by workers in a city to be $30 and computes the margin of error to be $5.
What is a test statistic and how is it related to a critical value in hypothesis testing? What is the critical region in hypothesis testing and why is it important?
Using the data file below, construct a histogram and a frequency polygon. Describe the shape of this distribution.
Given the following hypotheses: the true mean equals 100 (the null) and the true mean does not equal 100 (the alternate), a random sample of six resulted in the following values:
suppose that you must establish regulations concerning the maximum number of people who can occupy an elevator. a study
television viewing 8.35 hours per day per household. normal probabiity distirbution with a standard deviation of 2.5
Suppose you study a random sample of 100 GRE verbal exams. Determine the probability that the average (mean) score in this sample will be between 485 and 515.
Find out the following: Mean swipe rate, Standard deviation of the swipe rate.
Two models of a product - Regular (X) and Deluxe (Y) - are produced by a company. A linear programming model is used to determine the production schedule.
a) Do a test to see if workers attitudes on this matter have changed using a 90% alpha. b) Explain to management what your findings are and what this suggests about future decisions vs work options.
Use value you found in part a to find out degree of confidence for interval 65.65
a gambler plays roulette and makes a 1 bet on four numbers 400 times. the bet pays 8 to 1. find the chance that the
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