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Manufacturing and Product Development Grade 40s grease mohair must have a fiber diameter of approximately 24 microns. A manufacturer of mohair jackets received a large shipment of 40s-grade raw material and obtained 30 random measurements of fiber diameter. The manufacturer can only assume that the underlying distribution of fiber diameters is continuous. Is there any evidence to suggest that the median diameter is different from 24 microns? Use a significance level of a = 0.05.
suppose that a player is a 75 shooter in the first throw and a 80 shooter in the second if the first one is scored but
Which one of the following numbers could not be a correlation coefficient?- Which one of the following correlation coefficients indicates the strongest relationship?
it takes annie an average of 60 sec. to solve a rubiks cube. you come in with a rubiks cube and mix it all up and ask
Make some sketches. For each of the following situations, make a scatterplot that illustrates the given relationship between two variables.
Construct a 99% confidence interval estimate for the population mean weight of the tea bags. Is the company meeting the requirement set fourth on the label that the mean of tea in a bag is 5.5 grams?
One sample of 16 third-graders had been taught to read by the "look-say" method. A second sample of 18 had been taught by the phonics method.
Administrators at a university are planning to offer a summer seminar. It costs $3000 to reserve a room, hire an instructor, and bring in the equipment. Assume it costs $25 per student for the administrators to provide the course materials.
One of the products produced by Branco Food Company is Total-Bran Cereal, which competes with three other brands of similar total-bran cereals.
My research question is: Does emotional intelligence affect happiness? What statistics test would be best to use since all my subjects were issued one survey at one time. I am not comparing age or gender. Just collecting responses.
What is the population for this survey?- What is the approximate margin of error for this survey?- Provide an interval that is 95% certain to cover the true percentage of U.S. adults in December 2009 who would have answered "Better" to this questio..
Airline Travelers often choose which airport to fly from based on flight cost. Cost data (in dollars) for a sample of flights to eight cities from Dayton, Ohio, and Louisville, Kentucky, were collected to help determine which of the two airports was ..
Suppose that, from a population of 75 bank accounts, we want to take a random sample of six accounts in order to learn about the population. How many different random samples of six accounts are possible?
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