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In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD). Find the proportion of ASD in Arizona with a confidence level of 99% by answering the following questions
Find:
P-Hat
Z Score
Error bound of the proportion
Confidence Interval
From these we calculate = 129.44; = 122.65; sx = 9.15; sy = 11.02. Perform the test H0: against the alternative H1:, using the two sample t-test, and state any assumptions you may require to do this test.
Suppose you conduct survey asking people if they support something or if they like some product or if they watch some TV-show.
What is the probability that the test shows a positive result (meaning the person is diagnosed as diseased, perhaps correctly, perhaps not)?
For the following data obtained from four independent samples, use the 0.025 level in testing H0: 7r1 5 7r2 5 7r3 5 7r4 versus H1: At least one popula- tion proportion differs from the others.
Use computer simulation to find the probability of correctly predicting i matches for i = 0, 1, 2, and 3.
Define the objective function for a firm and the decision variables Define the constraints for the problem (constraint for labour and constraint for capital)
Leisure time for college students. You want to measure the amount of "leisure time" that college students enjoy. Write a brief discussion of two issues:
In 45 days, you decide to make a payment of $4,375 on the loan. What is your new principal? Explain how you got the answer.
The probability of being in a car accident when driving more than 10 miles over the speed limit in a residential neighborhood is 0.04.
Determine (or define) the sample and the population. Describe the statistical method(s) being used and define inferential statistics. Interpret the meaning of p-value.
If the interval of tiem between eruptions is normally distributed with standard deviation 21.25, then what is the probability that a randomly selected time interval between eruptions is longer than 95 minuntes.
Construct a 95% confidence interval for the mean age of all customers, assuming that the assumptions and condi- tions for the confidence interval have been met.
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