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We write the numbers 1 -10 on separate pieces of paper, and put them into a box. A number is drawn from the box. Find the chance that the number is a multiple of 3, given that the number is even.
a. 1/10
b. 1/5
c. 3/5
d. 4/5
e. 2/5
the length of useful life a fluorescent tube used for indoor gardening is normally distrubuted. the useful life has a
A poll found that 69.9% of citizens felt the government was not working well. If 7 people were randomly selected, what is the probability that all 7 felt the government is not working well?
the data set toxemia contains information for a sample of 100 infants born in two hospitals in boston. indicators of a
a survey was conducted at a local high school to determine the number of hours that a student studied for the final
question a group of statistics students decided to conduct a survey at their university to find the average mean amount
Construct a 95% confidence interval for the proportion of adults from the West who say traffic congestion is a serious problem.
Assuming that a plane make a safe flight if at least one-half of its engines run, determine whether a 4-engine plane or 2-engine plane has the higher probability for a successful flight.
To sketch the 3-sigma X-bar chart and R-chart parameters. A candy bar manufacturer desires to set up a variables control chart for the net weight of its candy bars.
How many adults must be randomly selected to estimate the mean driving time of Chicago commuters? We want 99% confidence that the sample mean is within 4 minutes of the population mean, and the population standard deviation is known to be 8 minute..
A sample of 50 customers resulted in a sample mean of $90. What is the probability of obtaining a sample with a sample mean smaller than $90?
q1. describing data frequency distribution and graphic presentationsyou are the parts manager for a local dumb phone
As a part of their testing program Sony tests samples of 25 batteries. What can you say about the shape of the distribution of sample mean?
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