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The probability density of the net weight in ounces of a packaged compound is f(x)=2.0 for 19.75<x<20.25 ounces and f(x)=0 for x elsewhere
(a) determined the probability that a package weight is less than 20 ounces
(b) suppose that the packaging specifications required that the weight be between 19.9 and 20.1 ounces. what is the probability that a randomly selected package will have a weight within these specifications?
(c) determine the mean and variance.
Create raw score predictions on criterion variable for persons with Z scores on predictor value of -2,-1,0,+1,+2.
Use a significance level of alpha = .05 to test the claim that p > .5. The sample is a simple random sample n = 50. Show how to calculate beta for the test and assume the true population proportion is .6.
Find a 90% confidence interval for the mean amount left by all groups.
Mighty Manufacturing must decide on the processes to use to produce 1650 units. If machine 1 is used, its production will be between 300 and 1500 units. Machine 2 or machine 3 can be used only if machine 1's production is at least 1000 units. Ma..
Determine the upper control limit (UCL) and lower control limit (LCL) for an X-Bar chart if six samples of subgroup size 5 (n=5) were collected, and the mean of the sample averages is 4.7 and mean of the sample ranges is 0.35.
At the .01 significance level, is there a difference in the use of the four entrances?
Evaluate your histograms for any outliers in your data. Based on your evaluation of outliers, you may trim no more than 1% of the data contained in the data set. This must be done symmetrically (i.e., trimming no more than 0.5% off the top and 0.5..
Random samples of 25 observations were selected from each of 3 populations. For these data, SSTR= 120 and SSE = 216.
MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
You've administered a standardized test of manual dexterity to two groups of 10 semi skilled workers. One of these two groups of workers will be employed by you to work in a warehouse with many fragile items.
Carefully define a standard normal distribution. Why does a researcher want to go from a normal distribution to a standard normal distribution? Explain.
Process data by Excel using its two-way ANOVA without replication program.
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