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Apply the Wilcoxon rank-sum test to the following problem; we have modified the data from the pig blood loss experiment: Pig Blood Loss Data (ml)
Control Group Pigs
Treatment Group Pigs
786
743
375
766
3446
655
1886
923
478
1916
587
897
434
3028
3764
1351
2281
902
2837
1378
Sample mean = 1687.40
Sample mean = 1255.90
Do the results differ from the standard two-sample t test with pooled variance? Are the p-values similar?
in how many ways can a photographer arrange 6 people in a row from a group of 10 people where the bride and groom are
A part of our research design is the data collection process. We often do this by sampling. Differentiate between random and nonrandom sampling methods.
use the following scenario to answer the next 5 questions. millions of americans are subjected to drug testing in the
Finds the average life time for this sample is 970 hour and the standard deviation is 80 hours. Can the firm claim that the average life time is 1000 hours at the 5% level of significance?
Assuming the standard deviation of the populaiton is 0.8 year, find the 99% confidence interval estimate for the population mean.
Twenty-three faculty members volunteered. Each faculty member gave the survey to all the students in one course of their choosing. Would this sampling method be considered a cluster sample? Why or why not?
What is the probability that sara will die in her 60th year? using this probability and the $50,000 death benefits, what is the expected loss?
You read that statistical test at α=0.01 level has probability 0.14 of making a Type II error when specific alternative is true. Calculate the power of test against this alternative?
A local television station plans to drop four Friday
What is a 90% confidence interval for the mean monthly expenditure on gasoline per household in Slippery Rock?
Correlation rule states that if X and Y are correlated, X has caused Y.
1000 students took a national aptitude test. as a result the mean score was 71 and standard deviation was 6. assuming
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