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State the degrees of freedom and the type of test (repeated measures or matched pairs) for the following examples of measures for a related samples t test: Explain
(a) The difference in coping ability in a sample of 20 brothers and sisters paired based on their relatedness
(b) The difference in relationship satisfaction in a sample of 25 pairs of married couples
Researchers have obtained and tested samples of four different brands of nylon rope that are advertised as having a breaking strength of 100 pounds. Given the breaking strengths (in pounds) shown here, use the 0.025 level in comparing the brands.
when a truckload of apples arrives at a packing plant a random sample of 180 is selected and examined for bruises
An instructor implements a new teaching strategy in the classroom by using a teaching strategy to teach a sample of six students.
1. Let A and B be n X n idempotent matrices. Show that A - B is idempotent if and only if AB = BA = B.- Let A be an orthogonal matrix. What can be said about the eigenvalues of A?
q1. records on a fleet of trucks reveal that the average life of a set of spark plugs is normally distributed with a
A random sample of 117 seniors averages 3.8 cuts per week, with a standard deviation of 0.53. Are seniors significantly different from the student body.
Month and standard deviation of $35, which of the following would be the highest individual rent that you might expect to find?
What is the difference between common cause variation and special cause variation?
Shown here is an Excel-produced pie chart representing physician specialties. What does the chart tell you about the various specialties?
A particular factory can only inspect 46 mice per hour with a standard deviation of 10. At alpha=0.02 company have reason to believe that these inspectors are slower than average?
A correlation coefficient is a number that looks like what - Which of the following correlation coefficients shows an inverse relationship?
Let X1, X2, . . . , X80 be a random sample of size n = 80 from a distribution with probability density function f(x) = 6x(1 - x), 0
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