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1. Each of the given z-scores, draw the normal distribution and sketch the vertical line at location of z-score, then find out whether body is to right or the left of line and determine the proportion in the body.
A) Z=0.75B) Z=-1.40C) Z=0.85D) Z=-2.10
2. Determine the each of the given probabilities for normal distribution
a) P(z > -1.00)b) P(z > -0.80)c) P(z > 0.25)d) P(z > 1.25)
It's estimated that 57% of Americans live in households with 1 or 2 people, 32% live in households with 3 or 4 people and 11% live in households with 5 or more.
What is the intercept for the logistic regression equation and What is a 95% confidence interval for the odds ratio
A business owner decides to use a binomial distribution to solve one of his problems. He knows there is a 60 percent probability that he will sell one of his Red Oak floors to any customer who comes into his shop and views the wood.
A sample of 160 workers in the downtown area classified each worker by race. A bar graph of the results is given below, but the bar for black workers in the graph below has been omitted.
Adriana Corporation manufactures football equipment. In planning for next year, the managers want to understand the relation between activity and overhead costs.
Suppose you conduct survey asking people if they support something or if they like some product or if they watch some TV-show.
The branch manager of a pet supply store wants to study characteristics of customers of his store. In particular, he decides to focus on two variables
Second treatment had M = 52 with s^2 = 36. Do these data point to significant difference between two treatments? Use the two-tailed test with α = .05.
In a certain town, 60% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults
Find out the p-value associated with test of hypothesis you conducted?
At the .01 significance level, can we conclude that there is more variation?
What can we conclude from these figures at a level of significance of .01?
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