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Jurors and gender A jury list contains the names of all individuals who may be called for jury duty. The proportion of the available jurors on the list who are women is 0.53. If 40 people are selected to serve as candidates for being picked on the jury, show all steps of a significance test of the hypothesis that the selections are random with respect to gender.
a. Set up notation and hypotheses, and specify assumptions.
b. 5 of the 40 selected were women. Find the test statistic.
c. Report the P-value, and interpret.
d. Explain how to make a decision using a significance level of 0.01.
The annual mean vehicle miles of travel per household
N = 500 is to be selected from the population. What is the probability that the sample proportion, will be within ± 3 percentage points of the true p, i.e., Pr{0.42 ≤ ≤ 0.48}?
Is there sufficient data to determine that these student data reflect population data? Determine using alpha .05 as critical value.
In how many ways can a committee consisting of 2 faculty members and 4 students be formed if there are 12 faculty members and 14 students eligible to serve on the committee.
Two points are chosen uniformly and independently on the perimeter of a circle of radius 1. This divides the perimeter into two pieces. Determine the expected value of the length of the shorter piece.
in a brand awareness study of 80 consumers 52 of them were able to identify corolla as a type of toyota automobile. the
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a researcher computes a 2 times 4 chi-square test for independence. what are the degrees of freedom for this test?
A local tire dealer wants to predict the number of tires sold each month. He believes that the number of tires sold is a linear function of the amount of money invested in advertising.
Let T1, T2, ... denote the interarrival times of events of a nonhomogeneous Poisson process having intensity function λ(t).
Steve then conducts a one-sample t-test on the data, knowing that there is an established mean for the publication of others that have taken this test of 6.
give and describe an example of a nominal measurement
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