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Two independent samples were taken, their values were:
31.3782
22.34339
22.00059
23.27456
19.58917
19.36148
18.69048
and
20.84991
14.47431
21.70867
20.95000
19.42273
22.40625
24.51507
21.81862
17.45048
19.09114
19.92904
27.34344
21.1876
The pooled variance of two samples is:
(1)14.388
(2)12.801
(3)12.68
(4)12.949
(5)14.285
Utilize the given degree of confidence also sample data to construct a confidence interval for population proportion.
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Calculate the sample mean and sample standard deviation.
Shall we reject the hypothesis that the population mean is 6.0? Interpret the result.
Identify the independent and dependent variables, and Construct a nominal, ordinal, and interval level measure for each independent and dependent variable.
Determine the probability of examining a sample mean weight from any 20 women chosen from this population that is less than S (your sample mean) by using population standard deviation?
Two groups of students are asked to rank their preference for six types of soft drinks. The following table shows their rankings.
This table gives three measurements of 10 samples made in a production run. Use statistical process control method to solve problem.
What is the probability that the team wins tonight and that there will be a large crowd at tomorrow's game?
I have computed an analysis of variance for three groups with 10 observations per group. Evaluate the degrees of freedom for the F test
She has a history of being successful at getting a donor on 55 percent of her calls. If June has a quota to get at least four donors each day.
Suppose population standard deviation for those drinking regular coffee is 1.20 cups per day and 1.36 cups per day for those drinking decaffeinated coffee.
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