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A telemarketer makes six phone calls per hour and is able to make a sale on 30 percent of these contacts. During the next two hours, find:
a. The probability of making exactly four sales.
b. The probability of making no sales.
c. The probability of making exactly two sales.
d. The mean number of sales in the two-hour period.
using the flag data set given below fit a model that predicts cost based on dotest. use the complete data set in your
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a local school district claims that the number of school days missed by its teachers due to illness is below the
State the null and alternative hypotheses needed to attempt to establish that the advertisement increases the mean attitude score
Unnithan, Houser, and Fernhall (2006) were interested in whether playing the game Dance Dance Revolution (DDR) affected the heart rate of overweight and nonoverweight adolescents differently. A group of 22 adolescents, 10 classified as overwei..
a researcher needs to conduct a suitable nonparametric test to compare two dependent variables. which of the following
Why is it significant to be familiar with frequency distributions in the business world? Provide examples by using a distribution chart from a set of data.
The mean weight of 500 students is 151 lbs and the standard deviation is 15 lbs. Assuming the weights are normally distributed, find out how many students weigh between 120 and 155 lbs.
You randomly select 40 can and carefully measure the contents. The sample mean of the cans is 127.9 ounces. Does the machine need to be reset?
a certain patient can experience three different types of symptoms let ai i 123 denote the event that the patient has
the slider p moves inward by pulling a string is not shown. the arm angular position is given in radians by theta
a fair dice is tossed. let x denote the number that appears and let y1 if an odd number appears and y3 if an even
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