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Women athletes at the a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 39 women athletes at the school showed that 22 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 1% level of significance.
a) What is the level of significance?
b) What is the value of the sample test statistic? (Round your answer to two decimal places.)
c) Find the P-value of the test statistic. (Round your answer to four decimal places.)
Determine the mean for list of numbers. 6, 5, 9, 4, 14, 9 (Round to the nearest tenth)
Explain the independent variable, covariate, and levels (groups) of eah. Also, explain the dependent variable and its associated measurement scale and expected outcome.
Sampling variability refers to the idea that different samples will include different individuals
Modify above problem (Problem 8th) so that each hardware vendor now demands seventy-five (75) units. Any units available from the vendors that are not shipped cost nothing.)
How many of these new cardholders would you expect to default? What is the standard deviation?
What is the distribution of X? State its mean and variance.
In a surgey of 280 adults over 50.80%; said they were taking vitamin supplements. Find the margin of error for this survey if we want a 99% confidence in our estimate of the percent of adults over 50 who take vitamin supplements.
Play 100 games of scraps and empirically determine an estimate for the probability of winning.
To find the probabilities values of standard normal variable
Determine what analysis would you do on each problem (ie, one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?
Find probability using normal distribution.Using N (1152, 84), the Normal model for weight of Angus steers, what percent of steers weigh.
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
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