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A researcher conducted a two-way ANOVA and found the following results for one of the main effects, F(2, 347) = 9.84, p = .005, η2 = .010, observed power = .87. How can the researcher interpret the effect size?
What would you expect the Tukey-Kramer procedure for multiple comparisons to show if it were performed for all pairwise comparisons?
"Assuming that all else remains constant, the length of a confidence interval for a population mean increases whenever the confidence level and sample size increase simultaneously."
an airline knows that 5 of the people making reservations on a certain flight will not show up. consequently their
The Chartered Financial Anaylst (CFA) institute reported that 51% of its U.S. members indicate that lack of ethical culture within financial firms has contributed the most to the lack of trust in the financial industry. (Source: cfa.is/YqVCKB) S..
If it's appropriate, find a 90% confidence interval for the proportion of houses in this zip code that have swimming pools. If it's not appropriate, explain and/or recommend an alternative action.
More than 1 million skin cancers are expected to be di- agnosed in the U.S. this year-almost half of all cancers diagnosed. The prevalence of skin cancer is attribut- able in part to a history of unprotected or under-pro- tected sun exposure. Sunscre..
Four customers in succession come into the store to order stereos. The retailer is interested in their preferences. List the possibilities for preference arrangements among the four customers.
Pay Scale is a source of online compensation information, providing access to accurate compensation data for both employees and employers.
The accompanying two-way table was constructed using data in the article "Television Viewing and Physical Fitness in Adults" (Research Quarterly for Exercise and Sport, 1990: 315-320).
At the .01 level of significance, do these data support the conclusion that the ferritin distribution in elderly men has a smaller variance than in younger men?
A solid, round simply supported steel shaft has a diameter of 38 mm and a span length of 800 mm. The shaft supports a concentrated load of 3 kN at midspan. Calculate the maximum deflection of the shaft.
you want to compare response rates percents of two regimens. a power of 90 and a two-sided test of size 0.05 are
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