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Good Sampling Method? To obtain students' opinions about proposed changes to course registration procedures, the administration of a small college asked for faculty volunteers who were willing to administer a survey in one of their classes. Twenty-three faculty members volunteered. Each faculty member gave the survey to all the students in one course of their choosing. Would this sampling method be considered a cluster sample? Why or why not?
Predict the final grade for a student who studies statistics 8 hours per week (x1), attends 34 classes (x2), and turns in 11 assignments (x3).
let x1x2x3 be a random sample of size three from a distribution with the probability density function.fx 2x 0ltxlt1find
A bowl contains 16 chips, of which 6 are red, 7 are white, and 3 are blue. If four chips are taken at random and without replacement, find the probability that: there is at least one chip of each color.
a plastic casing for a magnetic disk is composed of two halves. the thickness of each half is normally distributed with
Find the critical value for zα/2 that corresponds to a degree of confidence of 98% - Find the critical value for tα/2 corresponding to n = 12 and 95% confidence level.
Suppose the random variable x is best described by a normal distribution with µ = 24 and σ = 2.7. Find the z-score that corresponds to each of the following x values.
the advertising firm of mcmann and tate has put out bids for two separate contracts. based on past experience they
Suggest one psychological research question that could be answered by each of the following types of statistical tests:
two variables x and y have a strong linear correlation. under what condition can you determine the direction of
Outline the difference between the t test for independent groups and the t test for matched groups. A researcher computed the F ratio for a four-group experiment.The computed F is 4.86. The degrees of freedom are 3 for the numerator and 16 for the ..
Choose any Statistic business problem and develop a problem statement which can be addressed with survey research. Prepare a 10-13 question survey to collect primary data regarding your selected problem statement.
give an example of global sustainability that demonstrates your understanding of the
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