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Assignment Guidelines
Critically evaluate the two scenarios you selected based upon the following points:
Scenario:
Statistical significance is found in a study, but the effect in reality is very small (i.e., there was a very minor difference in attitude between men and women). Were the results meaningful?
An independent samples t test was conducted to determine whether differences exist between men and women on cultural competency scores. The samples consisted of 663 women and 650 men taken from a convenience sample of public, private, and non-profit organizations. Each participant was administered an instrument that measured his or her current levels of cultural competency. The cultural competency score ranges from 0 to 10, with higher scores indicating higher levels of cultural competency. The descriptive statistics indicate women have higher levels of cultural competency (M = 9.2, SD = 3.2) than men (M = 8.9, SD = 2.1). The results were significant t (1311) = 2.0, p <.05, indicating that women are more culturally competent than are men. These results tell us that gender-specific interventions targeted toward men may assist in bolstering cultural competency.
a new design for the braking system on a certain type of car has been proposed. for the current system the true average
A beverage company is trying to ?nd out the distribution of the breaking strength of their glass bottles. Fifty bottles are selected at random and tested for breaking strength, with the following results (in pounds per square inch):
1. Let Y have a chi-square distribution with 7 degrees of freedom. Find the following probabilities.
for a particular year theaverage math score on the act is 19.7 with a standard deviation of 4.7. what is the
in studying the occurence of genetic characteristics the following sample data were obtained. at the 0.05 significance
If probability the first truck is available is= .75, probability the second truck is available is= .50, and probability both are available is= .30, determine the probability which neither truck is available?
Also, the sample data appear to have a bell-shaped distribution. Construct the 95% confidence interval for the mean time spent on paperwork by all managers.
In patients with congestive heart failure, two or more drugs were prescribed in 257 of 437 U.S. patients. In Scotland, 39 of 179 patients had two or more drugs prescribed
Bill Russ, the production manager at Ross Co., maintains detailed records on number of times each machine breaks down and requires service all through the week. Bill records show that the Puret grinder has required repair service according to the ..
The frequency distribution below was constructed from data collected from a group of 25 students. Construct a relative frequency distribution.
an effective way to catch salmon commercially is by gill netting. traditionally gill netters hang long monofilament
1. determine if this is an example of probability or statistics the average cost of groceries has risen by 4.2 in the
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