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The life of a Radio Shack record player is normally distributed with a mean of 3.8 years and a standard deviation of 1.1 years. Radio Shack guarantees its record players for 2 years.
(a) Find the probability that a record player will last less than 2 years?%
(b) Find the probability that a record player will last more than 4 years?%
motion picture industry read the motion picture industry case study and using this data set please provide a managerial
Wind Speeds. The average wind speed in Casper, Wyoming, has been found to 12.7 miles per hour, and in Phoenix, Arizona, it is 6.2 miles per hour.
Example: The correlation coefficient between natural disaster and the number of doctors in the area was .95. The Martian concluded that doctors cause spontaneous generation natural disasters.
The flight exceeds the capacity of the plane
If it is his policy never to tell the same joke twice, what is the minimum number of jokes he will tell in 35 years?
For each of the following questions, draw a diagram of a distribution curve and show your calculations. Always round to the nearest fourth decimal place.
use your calculator or other software to conduct a test of the hypothesis that mu6 vs mult6 for the following data.
A professor is targeting a score of 80 on an exam. His forty-nine students averaged 78 on an exam with s = 7. Are the scores significantly less than 80 at a significance level of 0.05? Show your work and state the conclusion.
A mathematics professor has two umbrellas, both of which were originally at home. The professor walks back and forth between his home and office, and if it is raining when he starts a journey, he carries an umbrella with him unless both his umbrel..
30% of college freshmen support increased military spending. If 12 college freshmen are randomly selected, find the probability that more than 5 selected students support increased military spending.
Construct descriptive statistics for blood glucose level before the drug was administered and comment.- What is the correlation between blood glucose levels before and after administration of the drug?
It has been reported that 35% of all cars on the highway are traveling at speeds in excess of 70mph. If the speeds of eight random automobiles are measured via
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