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Question: Women s basketball. Here are boxplots of the points scored during the first 10 games of the season for both Scyrine and Alexandra:
a) Summarize the similarities and differences in their performance so far.
b) The coach can take only one player to the state championship. Which one should she take? Why?
Hooded rats: object play counts. The researchers who conducted the study in the previous exercise also recorded the number of times each of three types of behavior (object play, locomotor play, and social play) occurred.
Using = .05, what is the critical value for the test statistic? (+ or -). State the rejection rule: Reject H0 if z is the lower critical value or the upper critical value.
a sample of 9 days over the past six months showed that a dentist treated the following numbers of
To determine whether this difference is significant, you collect data on the seating preferences for the students in your class. A researcher hypothesizes that individuals who listen to classical music will score differently from the general popula..
suppose it has been observed that touchdowns scored in a game by your favorite football team are poisson random
find the mean variance and standard deviation of the binomial distribution with the given values of n and p.n90
Construct a different probability distribution with the same possible values, the same mean, and a smaller standard deviation. Show your work and report the standard deviation of your new distribution.
consider a hypothesis test of difference of means for two independent populations x1 and x2. suppose that both sample
Does this data support the researchers' hypothesis? Test the relevant hypotheses using α = .10 by first calculating a P-value.
Statistically significant differences (α ≥ 0.05) between the benefits of behavioral therapy and psychoanalysis when treating an eating disorder were found.
What confidence level would you assign to the procedure in your example; that is, what percentage of the time do you think it produces your desired result?
two variables x and y have a strong linear correlation. under what condition can you determine the direction of
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