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1. On the average, a certain computer part lasts eight years. The length of time the computer part lasts is exponentially distributed.
a. What is the probability that a computer part lasts more than 5 years?
b. On the average, how long would five computer parts last if they are used one after another?
A manufacturing firm produces pads of bound paper. Three percent of all paper pads produced are improperly bound.
ECON1005 Introductory Statistics Assignment - From the stem-and-leaf diagram constructed in Question 16: Find the lower quartile of the ages
Convinving evidence at the .05 significance level to support the claim that the actual number of cards is an undergrads wallet is greater than 4.09. state the null and alternative hypothesis.
You estimate the chances of your favorite sports team winning any game against its current play-off opponent to be p = 0.6. For the sake of this problem
Assume that each unit sold generates $70 in revenue and that each unit ordered cost $50. If the monthly order quantity is chosen to be 500 units, what is the expected monthly profit? (note: Profit=Revenue - Cost)
A large corporation has 4520 male and 567 female employees. The organization's equal employment opportunity officer wants to poll the opinions of a random.
the following data were obtained from a survey of college students. the variablenbspxrepresents the number of
using the standard normal table find the proportions for the areas listed belowa. the area between z 0 and z 2.13b.
Which of the following assumptions for inference about a proportion using a confidence interval are violated,
Identify the sample and population. Also, determine whether the sample is likely to be representative of the population.
Group 2 data [ 141, 139, 172, 131, 150, 125. Assume normal distribution, with equal variance in the two groups and conclusion for a=0.05.
suppose the coffee industry claimed that the average u.s. adult drinks 1.7 cups of coffee per day. to test this claim a
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