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Decreases in body temperature (degrees Fahrenheit)
Group 1 (aspirin)
0.95
1.48
1.33
1.28
Group 2 (ibuprofen)
0.39
0.44
1.31
2.48
1.39
Group 3 (acetaminophen)
0.19
1.02
0.07
0.01
0.62
-0.39
This trial evaluated the fever reducing effects of three substances. Study subjects were adults seen in an emergency room with diagnosis of flu with body temperatures between 100.0 degrees F to 100.9 degree F. The three treatments aspirin, ibuprofen, and acetaminophen were assigned randomly to study subjects. Body temperatures were reevaluated 2 hours after administration of treatments. Displays the above data with side-by-side box plots and calculate the mean and standard deviation of each group and describe what you find then produce an ANOVA for the problem. Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Describe what you find then produce an ANOVA for the problem.
At.01 significance level is it sensible to conclude that modification decreased the number of traffic accidents?
Write down the probability of that the median of the sample or average medians is greater or more than 320 minutes?
Suppose you were to cut up the directory and pull out one listing at random to contact.
The amount ($1.00, $5.00, $10.00, $25.00, or $50.00) promised to each person was determined by randomization. For each person who was sent one of the surveys, The value of the X2 test statistic for testing the hypothesis
What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)?
A review of voter registration records in a small town yielded the following table of the number of males and females registered as Democrat, Republican, or some other affiliation.
What is the probability that a particular driver had exactly two speeding violations?
Is there any evidence that the different teatments produced different responses? If so, which one seems to work best?
For the 20 test scores shown, find the percentile rank for a score of 86.
A school tracks the absences of pupils as part of a flu surveillance system. Regular reporting of absences among 25 students in grade 1 are taken, and based on these data, the long-run proportion of absences under normal conditions is estimated to..
Examine the relationship between final grade and the reported hours per week each student said they studied for the course. Do we have evidence that females are being discriminated against?
The conservative degrees of freedom for the t distribution are and The standard error, conservative degrees of freedom
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