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Ballast must weigh 150 kg. It can be made from two raw materials, A (with a cost of Rs. 20 per unit) and B (with a cost of Rs. 80 per unit). At least 14 units of B and no more than 20 units of A must be used. Each unit of A weighs 5 kg and each unit of B weighs 10 kg. How many units of each type of raw material must be used for a product to minimize cost?
Describe whether the data appear to be approximately normally distrusted by .. a. Comparing data characteristics to theoretical properties.
A survey showed that 24% of college students read newspapers on a regular basis and that 81% of college students regularly watch the news on TV. The survey also showed that 21% of college students both follow TV news regularly and read newspapers ..
The past year and carry out a hypothesis test for its suspicion. State the null hypothesis and the alternative hypothesis that it would use for this test.
Should we thus conclude that verbal praise tends to lower performance levels, whereas verbal criticism tends to raise them? Or is some other explanation possible?
Examples of hotel functions include setting daily room rates, attracting events (meetings, conferences, etc.), managing hotel material, etc.
Find out the estimate of the population mean.The mean daily sales at the Stop and Go are $20,000 for a sample of 40 days. The standard deviation of the sample is $3,000.
Assume the probability of a tire blowout is 0.102% per 50,000 miles of use and that a person travels 13,000 miles per year in a car. Assume that the probability of loss of control is 30% if the blowout occurs on the front tires and 15% for the rea..
Probability values based on normal distribution - What can you say about the shape of the distribution of sample mean and find the standard error of the distribution of the sample mean?
How do question content and wording, response strategy, and preliminary analysis planning affect question construction?
Wall Street securities firms paid out record year-end bonuses of $125,500 per employee for 2005 (Fortune, February 6, 2006). Suppose we would like to take a sample of employees at the Jones & Ryan securities firm to see whether the mean year-end b..
You are asked to estimate the chance that the sum will be positive. Can you do it if you are also told the average and SD of the numbers in the box, but are not told the numbers themselves?
Find the approximate percentile ranks of these scores by constructing a percentile graph (Ogive).Use the Ogive, estimate percentile of a student who scored 200 points in the test? What is the student score must be in order in the 90 percentile?
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