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Question: A cheerleading squad received a mean rating (out of 100 possible points) of 75 ± 12 (!l ± cr) in competitions over the previous three seasons. The same cheerleading squad performed in 36 local competitions this season with a mean rating equal to 78 in competitions. Suppose we conduct a one-sample z test to determine whether mean ratings increased this season (compared to the previous three seasons) at a .05 level of significance.
(a) State the value of the test statistic and whether to retain or reject the null hypothesis.
(b) Compute effect size using Cohen's d and state whether it is small, medium, or large.
Show the odds of any two individuals having the same birthday are slightly greater than 1:1 (1:.9732 actually).
What percent of these students are oldest or only children?- What percent of Humanities majors are oldest children?- What percent of oldest children are Humanities students?
Are memoirs a primary or a secondary source? could they be considered both a primary and secondary source?
What are the key components of consideration that went into forming the Texas Constitution?
Discussion Questions for Meridel Le Sueur, "Women on the Breadlines" (1) How is Le Sueur's essay an example of reportage, or "agitation-journalism"?
Under what condition might you prefer to use the median rather than the mean as the best measure of central tendency? Explain why.
How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 5% with 98% confidence?
Netvalley.com compiled a list of the top 100 banks in the United States according to total assets. Leading the list was Bank of America, followed by JPMorgan.
the visibility standard index vsi varies from 0 excellent to 200 very bad. denvers mean vsi is 90 with a standard
a random sample of 35 gmat scores for applicants to an mba program has a mean score of 479. the researcher is
from the data bank select a random sample of 30 individuals. a. use the z test to test the hypothesis for iq that h0
Assume σ = 365 and use a = 0.05. Is there any evidence to suggest that the true mean runway length needed for takeoff of an Airbus A350-900 is greater than 8000 feet? Use the p value to draw a conclusion.
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