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Manufacturing and Product Development
The Brunton Optimus Crux Camping Stove, a lightweight camping stove, is designed to accept a tri-blend fuel made of propane, iso-butane, and butane. The cartridges for this stove are sold with camping equipment, and the label indicates 225 grams of fuel. To check this claim, 52 cartridges were randomly selected and the amount of fuel in each was carefully measured. The sample mean was = 224.2 grams.
a. Is there any evidence that the true mean amount of fuel in these cartridges is less than the advertised amount? Assume σ = 3.6 and use a = 0.05.
b. What assumptions did you make in order to conduct the hypothesis test in part (a)?
Find the probability that the manager reaches her client in two or fewer calls.- Find the probability that the manager reaches her client on the second call but not on the first call.
If this past distribution is a good indicator of future grades, what is the probability of a student receiving a C in the course?
The two machines were set to do the work together but after 2 ½ hours B broke down leaving A alone to complete the rest of the work. How long did it take machine A to do the remaining work.
You're trying to improve the rivets and want to examine some that fail. Use a simulation to estimate how many rivets you might need to test in order to find three that fail at 900 pounds (or below).
If we assume that the errors made by rounding off are iid and have a uniform distribution over the interval ( - ~, ~), compute approximately the probability that the sum of the integers is within two units of the true sum.
at appalachian state university it is known that 48 of undergraduates are male. if a sample of 125 undergraduate
The resulting equation for the line of best fit is given below, with x being observed for values between 10 and 200. If a production run was scheduled to produce 80 units, what would you predict the cost per unit to be in dollars?
Suppose that the thermometer readings are normally distributed with mean of 0° C and a standard deviation of 1.00° C. A thermometer is randomly selected and tested.
Is there evidence to suggest a difference in the mean waiting times at the four body shops? Use the .05 significance level.
Place a 95% confidence interval about the population mean number of down hours per month.
Each of these systems functions, independently of the others, with probability 0.98. As long as at least one of these systems is functioning, this shuttle Component functions successfully.
Given that z is a standard normal random variable, compute the following probabilities.
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