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Q1) Use X2 goodness-of-fit test to test claim about population distribution. Interpret decision in context of the original claim.
Legal researcher is studying age distribution of juries by comparing them with overall age distribution of available jurors. Researcher claims that jury distribution is different from overall distribution; i.e., there is noticeable age bias in jury selection in this area. Table illustrates number of jurors at county court in 1 year and percent of persons residing in that county, by age. Use population distribution to determine expected juror frequencies. Test researcher's claim at a = 0.01.
21-29
30-39
40-49
50-59
60 and above
Jury
45
128
244
224
359
Population
20.5%
21.7%
18.1%
17.3%
22.4%
Describe what you find then produce an ANOVA for the problem.
Create a frequency table for the total number of people that prefer each type of music:
When the non-parametric statistics utilized? Write down an example.
Assume Nick doesn't know how his received he suppose that all three states of nature are equally likely to occur. If Nick uses the equally likely criterion illustrate what decision would he make.
Given that Vacationer will travel less than 500 miles, Find out the probability that he/she will drive or take the Bus/Train?
There are two telephone lines A and B. Let E1 be the event that line A is being used and E2 be the event that line B is being used
At the 5% significance level, if the sample proportion is .45, and the standard error of the sample proportion is .035, the appropriate conclusion would be:
A survey of college students collected information on several variables: Distance from Home, Age, Major, Gender, and Class. The variable Major is
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At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
How large should n be so that the standard deviation of is no more than 0.01 and sampling distribution
For a new HDTV the mean number of months until repairs are needed is 36.84 with a standard deviation of 3.34 months.
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