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1) Determine the upper control limit (UCL) and lower control limit (LCL) for an X-Bar chart if six samples of subgroup size 3 (n=3) were collected, the mean of the sample averages is 4.7, and the mean of the sample ranges is 0.35. Determine the upper control limit (UCL) and lower control limit (LCL) for an X-Bar chart.
2) Determine the upper control limit (UCL) and lower control limit (LCL) for an R-chart if twenty samples of subgroup size 5 (n=5) were collected for a variable measurement and the mean of the sample ranges equals 4.4.
Diastolic blood pressure (DBP) values were measured for 150 patients using two medical devices. The mean DBP values using the two devices are 120 and 122 respectively. Also the standard deviation of the difference of the measurements is 0.634. Te..
if the same mean is 11 the hypothesized population mean 10 and the population standard deviation is 4 compute the test
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Describe each of the following types of designs, explain its logic, and why the design does or does not address the selection threats of Trochim and Donnelly (2006):
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We can use two products at my work, which are mutual funds and see if there is a correlation between the two. The two different funds are: a domestic stock mutual fund, which only invests in large organizations (large cap companies) based here in..
the weekly mean income of a group of executives is 1000 and the standard deviation of this group is 100. the
it is known that 35 of all students in a college are football fans. a sample of 12 students is selected at random. find
question a recent survey of banks revealed the following distribution for the interest rate being charged on a home
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