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The board of directors of a small company consists of five people. Three of those are "strong leaders." If they buy an idea, the entire board will agree. The other "weak" mem- bers have no influence. Three salespeople are scheduled, one after the other, to make sales presentations to a board member of the salesperson's choice. The salespeople are convincing but do not know who the "strong leaders" are. However, they will know who the previous salespeople spoke to. The first salesperson to find a strong leader will win the account. Do the three salespeople have the same chance of winning the account? If not, find their respective probabilities of winning.
Perform a hypothesis test by using.04 level of significance to find out if there is a difference between the population means.
The field of statistics can be roughly subdivided into two areas: descriptive statistics and probability.
x is a chi-square random variable with 10 degrees of freedom. what is the value of a such that px lt a .025? answer to
suppose that the time owners keep their cars purchased new is normally distributed with a mean of 7 years and a
The calculated Z test statistic is a positive value that leads to a p-value of .045 for the test. If the significance level (α) is .01, the null hypothesis would be rejected.
What is the minimum score needed to be in the top 25% on this test? Carry your intermediate computations to at least four decimal places.
This problem related to Basic Statistics and it is about computing the probability of finding a car door on the assembly which takes time between 5 and 10 minutes. The computation has been given in the solution
a box contains three white and three black balls. a randomly selected ball is removed from the box. if the selected
a fair coin is flipped until heads or tails have occurred twice in a row. find the expected number of flips. show all
The average weight of adult men is 172 pounds with a standard deviation of 29 pounds. 30 men were asked their weight and the mean was calculated to be 181, test the hypothesis that the mean is not 172 pounds using alpha = .05.
q1. two opponents a and b are to play a game which consists of two indenotpendent rounds. to win the game a player must
an urn contains 4 white and 4 black balls. we randomly choose 4 balls without replacement this constitutes one trial.
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