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Q1) People are chosen to serve on juries by arbitrarily picking names from list of registered voters, average age for registered voters in country is m=39.7 years with standard deviation of s=12.4. Statistician randomly chooses a sample of n=16 people who are presently serving on juries. Average age for individuals in the sample is M=48.9 years.
a) How probable is it to get a random sample of n=16 jurors with average age greater than or equal to 48.9?
b) Is it sensible to conclude that this set of n=16 people is not representative random sample of registered voters?
The best estimator or appreciative for the population proportion is 0.45. How large must the sample be?
No, there is not enough information to refuse hypothesis that proportion of male students who live on campus and proportion of female students who live on campus are same as the test value -1.65 is inside acceptance region (-1.96,1.96).
What would you predict the price per share to be if 95 million shares were offered?
At 5% level of significance, does this sample prove violation of guideline that average patient must pay no more than $250 out of pocket?
To demonstrate the effectiveness of the drug, a researcher selects a sample of n = 25 children diagnosed with the disorder and measure each child's attention span before and after taking the drug.
If p is the probability of Event 1 and (1-p) is the probability of Event 2, based on the expected returns, for what values of p would you select A? B? C? Values in the table are payoffs.
Use the method of least squares to model the relationship between x and y.
Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.
Which of the following is the appropriate conclusion from carrying out these multiple comparisons
Use either Linear Programming module or Transportation module of Cd to minimize the shipping costs involved in move.
If a lot is known to contain 10% defective items, find out the probability that lot will be rejected? Accepted?
If sensitivity and specificity remain constant, determine the relationship of prevalence to predictive value positive and predictive value negative?
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