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Question: Manufacturing and Product Development Vacuumpacked coffee stays fresh longer, but the package tends to be bumpy and unappealing. In a nitrogen-flushed package, all the oxygen is pushed out by heavier nitrogen, producing a smoother, more attractive package that also stays fresh. A machine used to produce a nitrogen-flushed package should dispense 1.6 moles of nitrogen for a 1-pound package of coffee. In a random sample of 23 packings, the sample mean amount of nitrogen dispensed was x¯ = 1.78 moles. Assume the underlying distribution is normal, with σ = 0.5 moles, and use a = 0.01.
a. Is there any evidence to suggest the machine is malfunctioning?
b. Compute the p value associated with this hypothesis test.
About 10% of all adults deliberately do a one-time fling and feel no guilt about it. In a group of 7 adult friends, what is the probability that: No one has done a one-time fling.
Calculate the profit earned/loss incurred on; a high performance tire that exceeds 40,000 miles, a high performance tire that does not exceed 40,000 miles.
A company that has 200 employees chooses a committee of 15 to represent . When the committee is formed, none of the 56 minority employees are selected. if the committee is chosen randomly. What is the probability that it contains no minorities.
What is the probability that the fifth satellite launched will be the first to fail due to a solar-panel problem - first one fails due to a solar-panel problem
Sample with size n = 100 has mean = 30. Assuming the population standard deviation is 8, construct 95% confidence interval for population mean.
a committee of eight members is to be formed from a group of eight men and eight women. assume people from the group
Also, batches that have a mean of 1 standard deviation below the upper specification should be accepted no more than 8% of the time. Find the parameters of a variable sampling plan and describe its operation.
Research reports an F=ratio with df=3.36 from independent-measures research study. How many treatment conditions were reported in the study what was the total number of participants?
Observe the pattern that appears. "Fit" a straight line through this pattern either by eye or by using linear regression. Does the straight line appear to fit well?
What are the independent and dependent variables in this study? Identify the type of design that Dr. Smith used. What variables are confounded with the independent variable?
Using excel create two histograms with a vertical scale in percents for the 1950 and 2075 population data. Insert the histograms into a word document and discuss the main features of each histogram and compare and contrast them
For the data used in given Exercise, which values would be declared outliers using the rule based on MAD?- Verify that the sample mean, 20% trimmed mean, and median are X‾ = 229.2, X‾t = 220.8 and M = 221.
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