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Construct a cross tabulation to examine the relationships between the two nominal/ordinal level variables. Assume that you selected a random sample of two hundreds cases and collected data on these cases. Calculate Chi Square ans as appropriate, Lambda, gamma and Cramer's V. Briefly state conclusion about hypothesis relationship.Hypothesis 1
Robbery arrest Convictions
44 3
50 6
38 8
96 12
42 14
42 18
47 22
40 22
39 28
46 32
50 40
Mean=49.2 Mean=18.2
standard deviation=16.95542422 12.09269752
Median-45 Median=16
Mode=50 Mode=N/A
Observation=10 Observation=10
A manuscript is sent to a typing firm consisting of typists A, B, and C. If it is typed by A, then the number of errors made is a Poisson random variable with mean 2.6; if typed by B, then the number of errors is a Poisson random variable
The average cost of repairing a VCR is $80 with a standard deviation of 19. if one VCR is repaired, find the probability the cost is between 70 and 90.
Based on the result, does there to be an overall perception of 1 minute that is reasonably accurate?
A researcher wants to know if there is a relationship between a person's highest level of education (IV) and differences in life satisfaction (DV).
With a single-sample t ratio, the null hypothesis states that:
Find out the correlation among the two variables in the regression. A simple linear regression produced the following computer output.
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
The average age of the women was 36.97 with a standard deviation of 8.893. If a 95% confidence interval is calculated to estimate the difference between the two average ages, what is the margin of error? Assume both population standard deviations ..
From a population of cereal boxes marked "12 ounces," a sample of 16 boxes is selected and the contents of each box weighed. The sample revealed a mean of 11.7 ounces with a standard deviation of 0.8.
A population of scores has p = 44. In this population, an X value of 40 corresponds to z = - 0.50. What is the population standard deviation.
A doctor prescribed the drug penicillin to three different patients as a form oLtreatment for an infectious disease. It is known from the general population that 20 out of every 100 individuals are allergic to the drug.
a) What is the probability that for any day, the number of special orders sent out will be more than 4? b) What is the standard deviation of the number of special orders sent out daily?
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