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Peggy wants to know if her pack of cookies was statistically different from those of the rest of the class. She found out the average number of chips per cookie this year was 13.82 and the standard deviation for the class was 7.25. She had a pack of 10 cookies which had an average of 9.8 chips per cookie.
Calculate the 95% confidence interval for these data.
Calculate the effect size, Cohen's d, for these data and interpret the result in complete sentences (e.g., "Small effect size." Is not acceptable; "The small effect size means that X is lower than Y but not sufficiently lower that it would require action," is better)
Develop a pie chart to summarize these contributions. Develop a bar chart to summarize these contributions and why is it appropriate to construct a bar chart for these data instead of a histogram?
let x denote the distance m that an animal moves from its birth site to the first territorial vacancy it encounters.
Calculate the least square estimates of the slope and intercept. What is the estimate ofσ2? Find the estimate of the mean deflection ifthe stress level can be limited to 69%.
If the writing scores for the population have a standard deviation of σ = 20, does the sample provide enough evidence to conclude that the new composition course has a significant effect?
A restaurant claims that the waiting time of customers for service is normally distributed with a mean of 3 minutes and a standard deviation of 1 minute.
To what extent have increases in U.S. real GDP resulted from more labor inputs? From higher labor productivity?
What is meant by consistency and Draw a figure of the sampling distribution of a consistent estimator.
On a given day what is the probability that at least two computers will not be working? - What assumptions do your answers in parts a and b require? Do you think they are reasonable? Explain.
Describe the kinds of statistical software that are available to healthcare professionals.
The 132nd running of the Kentucky Derby had a field of 20 horses. If a bettor randomly selects 2 of those horses for an exact bet, what is the probability of winning
a 15-ft diameter wind turbine operates in a 25 ftsec wind at 1 atm and 60 degrees f. the turbine is used to pump 60
Find the probability that the 3rd club is drawn on the 8th selection. - Find the probability that at least 8 cards are drawn before the 3rd club appears.
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