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Construct charts for individuals using both two-period and three-period moving ranges for the following observations (in sequential order). Show the equations used for the control limits and centerline with the substitutions. You can use Minitab or Excel to build the charts. Show your work
7.2
8.5
7.4
9.5
16.3
17.1
8.1
14.7
17.3
15.5
4.3
16.9
17.2
6.2
15.1
11.5
7.5
12.8
13.5
assume the poisson distribution applies. use the given mean to find the indicated probability.find p6 when mean
At the 1% significance level, can it be concluded that the current distribution of responses differs from that of a year ago ?? Formulate and test the appropriate hypotheses. Use the critical value approach.
Suppose that the number of customers who enter a supermarket each hour is normally distributed with a mean of 570 and a standard deviation of 170.
Compute mean absolute percentage error (MAPE) of the forecasts.
A population has a standard deviation of 16. If a sample of size 64 is selected from this population, what is the probability that the sample mean will be within 2 of the population mean?
Would it be sensible to conclude that more than 10% of applicants are now failing the test?
If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours?
the four year graduation rate at the university college of engineering is 60. class of 2015 unm-coe has 250 students.
A recent study reported that the prevalence of hyperlipidemia (defined as total cholesterol over 200) is 30% in children 2-6 years of age. If 12 children are analyzed,
explain what will happen to the width of a confidence interval increase decrease or remain the same as a result of
What is the difference between strong negative and strong positive correlation? What does zero correlation tell you? Can you share a relationship between two variables that is typically negative?
The ACT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are normally distributed. In a recent year, the mean test score was 21.1 and the standard deviation was 5.0.
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