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There are two boxes, the odd box containing I black marble and 3 white marbles, and the even box containing 2 black marbles and 4 white marbles. A box is selected at random, and a marble is drawn at random from the selected box.
a) What is the probability that the marble is black?
b) Given the marble is white, what is the probability that it came from the even box?
When variables are used as the basis for a contingency table, what scale of measurement must they represent?
Based on this information can we determine the proportion of weeks the family spends less than $200. If so, find this proportion. If not, explain why.
suppose iq score were obtained from a randomnly selected siblings.for such 20 pairs of people the linear corelation is
Compute the nonresponse rate for this study. Does this influence how you interpret these results? Write a short discussion of this issue.
At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
In testing whether each of the independent variables (Xs) in a multiple regression equation is statistically significant in explaining the dependent variable (Y), one uses the:
Janice has noticed that on her drive to work, there are several things that can slow her down. First, she hits a red light with probability .3.
A random sample of 15 AAA batteries produced by this manufacturer lasted a mean of 9.8 hours with a standard deviation of 2.5hours. Find a 90% confidence interval for the population standard deviation of the lifetimes of AAA batteries produced by ..
probability based on addition rule.a sample of automobile dealerships found that 19 of automobiles sold are silver 22
Find the mean number of people saved by the first program. (b) Tversky then offered a different choice. One program has probability 1/2 of saving all 600 and probability 1/2 of losing all 600.
In checking a random sample of 400 emergency room patients, a board member finds that 35% of those treated were not true emergency cases. Using an appropriate hypothesis test and the 0.05 level, evaluate the administrator's statement.
please respond to the followingmiddot explain the concept of time value of money and how this can be applied in your
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