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In order to be accepted into a top university, applicants must score within the top 5% on the SAT exam. Given that SAT test scores are normally distributed with a mean of 1000 and a standard deviation of 200, what is the lowest possible score a student needs to qualify for acceptance into the university?
The following show the hours of sleep on weeknights for a sample of individuals age 49 and younger and for a sample of individuals age 50 and older.
Do these results suggest that the racial makeup of the faculty members is different from that of the students? (Use the .05 significance level.)
Suppose that you are interested in determining the relation between the students average SAT scores [x] and their freshman GPA [y].
The trail was repeated 54 times with 22 correct identifications and 32 wrong identification.
Is there a relationship between sales and newspaper advertising? Support your answer?
Strongly support, support, no opinion, do not support, strongly do not support. The number of people in each category was recorded.
They find that these 100 people lost an average of 38 hours with a standard deviation of 9.5 hours. What is the P-value for this significance test?
If the names of these 100 people in the building are still unknown but a room is allowed to lodge one tenant at most , then are there how many ways of room occupation?
An investment project is expected to earn $100,000 on average with a standard deviation of $50,000. Assume earnings from this investment project is a normal distribution. Of the next 15 people that invest in this project, what is the probability t..
The Texas Transportation Institute at Texas A&M University conducted a survey to determine the # of hours per year drivers waste sitting in traffic.
An ANOVA procedure is used for data that was obtained from four sample groups each comprised of five observations. The degrees of freedom for the critical value of F are:
The standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was
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