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Question: Life satisfaction among sport coaches. Drakou, Kambitsis, Charachousou, and Tzetzis (2006) tested differences in life satisfaction among sport coaches. They tested differences by sex, age, marital status, and education. The results of each test in the following table are similar to the way in which the data were given in their article.
(a) Which factors were significant at a .05 level of significance?
(b) State the number of levels for each factor.
At the Warren Road MacBurger, the quality-assurance department sampled 50 customers and found that the mean waiting time was 2.75 minutes. At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
What is the approximate probability that someone asked to pick a number from 1 to 10 will pick one of the two extremes, 1 or 10?
Create a 90 percent confidence interval for the population proportion of all such firms with this as the primary motivation.
to calculate beta requires making a what if assumption about the true population parameter where the what-if value is
Suppose 18 customers are selected at random. What is the probability that between two and six people inclusive want hot peppers?
Compute the power of the previous test if the true proportion of adults having access to the internet in the population is 41%. What is the power if the true proportion is 42%? 43%?
Is the social welfare function described here dictatorial? Justify your answer.- Does the social welfare function described here satisfy the unanimity property? Justify your answer.
Three friends play a game of darts until one of the 3 is declared a winner. It is known that Jan is twice as likely to win as Julio, and Jean is only half as likely to win as Julio.
question cellulon a manufacturer of a new type of home insulation wants to develop guidelines for builders and
How would you choose an appropriate level of significance for your statistical test? What are the possible outcomes and limitations of your statistical test?
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.
Wall Street securities firms paid out record year-end bonuses of $125,500 per employee for 2005 (Fortune, February 6, 2006). Suppose we would like to take a sample of employees at the Jones & Ryan securities firm to see whether the mean year-end b..
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