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Importance of recreational sports
The National Intramural-Recreational Sports Association (NIRSA) performed a study to look at the value of recreational sports on college campuses.6 A total of 2673 students were asked to indicate how important (on a 10-point scale) each of 21 factors was in terms of their college satisfaction and success. The factor "recreational sports and activities" resulted in a mean score of 7.5. Assuming a standard deviation of 4.1, give the margin of error and ?nd the 95% con?dence interval for this sample.
Mention the critical value of test statistic (Or give the p-value of the test.)
a random sample of forty-three 200 meter swims has a mean time of 3.27 minutes and a standard deviation of 0.07
Calculate and interpret the appropriate statistical test to determine the relationship between the following two variables. Use the five-step model of hypothesis testing to draw conclusions at the .05 level of significance
let etll n01 are define xt etet-1. show that xt is a white noise sequence.this provides an example of a dependent
The dimension is supposed to be 224 mm and the variability of the manufacturing process is unknown. Is there evidence that the mean dimension is not 224 mm?
A group of 200 adults aged 21 to 50 were selected from those entering Fit Right Health stores in Washington State, and were randomly divided into two groups. One group was given a herb and the other a placebo. After 6 months, the number of respira..
What is the probability that exactly five vehicles will pass in the first 15 minutes? Given that exactly two trucks passed in the first 5 minutes, what is the probability that the fourth truck will pass in the first 10 minutes?
according to a study published by a group of sociologists at the university of massachusetts approximately 49 of the
The results of a district spelling bee for both girls and boys are normally distributed. the 60 girls have a mean score of 71 with a standard deviation of 6, while the 50 boys have a mean score of 66 points with standard deviation of 5 points.
for a population with a mean of micro 50 and a standard deviation of s 10 how much error on average would you expect
a. What is the probability that one randomly selected student scores above 1100 on the GRE? b. Describe the sampling distribution of the sample mean for the 16 students.
according to cnn business partner careerbuilder.com the average starting salary for accounting graduates in 2008 was at
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