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Manufacturer of Lindt's Chocolate bar claims that the net weight of its 150g Hazelnut Chocolate bar is normally distributed with a mean of 155 g and a standard deviation of 3g.
Assuming that the claim is correct
Question: If you purchase one 150g Hazelnut Chocolate bar, what is the probability that its net weight is under weight (i.e. less than 150g)?. Draw the graph to illustrate
What would the control limits be for a type I error rate of 0.05? What factors would influence your selection of the type I error rate?
The survey in the previous exercise also asked iPhone users what phone, if any, the iPhone replaced. Here are the responses:
A pollster wishes to know the percentage p of people in a population who intend to vote for a particular candidate.
Diameters of bolts produced by a particular machine are normally distributed with mean 0.760 cm and standard deviation 0.012 cm.
the fill volume of an automated filling machine used for filling cans of carbonated beverage is normally distributed
What do these different scores tell you about the tests in Weeks 1, 2, 3, and 4? What is happening to the students' scores over time?
Consider a hypothesis test of H0: μ = 800 versus H0: μ, 800 with α = 0.025. Find the probability of a type II error and the power of this test for μ = 775; that is, find β(775) and π(775).
Calculate a 90% confidence interval for the difference between population mean extent of lateral motion for the two conditions. Does the interval suggest that population mean lateral motion differs for the two conditions? Is the message different ..
Given that there are three doors, one of which hides a sports car, calculate the probability that your initial choice is the door that hides the sports car.
question a study recently reported that the average age of a female shareholder is 44 years. a broker in adelaide wants
Suppose it has been determined that the average number of customers waiting for service is 1.929. There are two servers. Determine:
from a group of 7 paintings 3 are water colors and 4 are oils. in how many ways can you hang 3 paintings along a wall
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