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1. A company wants to know if minorities are more likely to be in certain job categories than others. Their data base codes employees 1 for clerical, 2 for custodial, and 3 for manager.
A logistic equation was fit to the data with SPSS, and the following output obtained.
A 95% confidence interval for the slope isA. -0.532 ± 0.498.B. 0.559 ± 0.477.C. -0.559 ± 0.477.
2. Who is more likely to smoke - males or females? Data from 92 subjects were obtained. Females were coded as 0 and males as 1. Minitab output is below.
Based on this information, who is more likely to smoke?A. MalesB. FemalesC. They're equally likely.
3. Who is more likely to smoke - males or females? Data from 92 subjects were obtained. Females were coded as 0 and males as 1. Minitab output is below.
What does the odds ratio mean here?A. Females are 82% more likely to smoke than males.B. Males are 82% more likely to smoke than females.C. Males are 6.17 times more likely to smoke than females.
What is the probability you pick a plum and Which of the following is a legitimate probability distribution for this situation
The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about
Which of the following is the appropriate conclusion from carrying out these multiple comparisons
Suppose the probability of the worst-case scenario increases Compute the expected value of perfect information
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots
A review of voter registration records in a small town yielded the following table of the number of males and females registered as Democrat, Republican, or some other affiliation.
Find the probability of getting a head and rolling a six
Plan the scatter diagram
A noted psychic was tested for ESP. The psychic was presented with 400 cards face down and asked to determine if each card was marked with one of four symbols: a star, cross, circle, or square. The psychic was correct in 120 cases. Let p represent..
Here is a scatterplot of average crawling age versus average outdoor temperature six months after birth followed by a plot of the residuals versus average outdoor temperature six months after birth.
where the deviations εi are assumed to be independent and Normally distributed with mean 0 and standard deviation σ. This model was fit to the data using the method of least squares. The following results were obtained from statistical software.
MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?
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