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1. A professor at a loca community noted that the grades of hi s students were normally distrubuted with a mean of 74 and a standard deviation of 10.The prof has informed us that 6.3 percent of his students received A's while only 2.5 percent of his students failed the course and received F's.
a. what is the minimum score needed to make an A.
b. what is the minimum score among those who received an F.
C. If tere were 5 students who did not pass the course,how many students took the course.
2. The Global fisherypacks shrimps that weigh more than 1.91 ounces each in packages marked 'large"and the shrimp that weigh less than 0.47 ounces each into packages marked "small", the remainer are packed in "medium size packages. if a day's catch showed that 19.77 percent of the shrimps were large and 6.06 percent were small, determine themean and standard deviation for the shrimp weights. Assume that the shrimps' weight are normally distrubuted.
Given that consumer changed te brands, what is the probability that consumer purchased fewer products than before?
This set of height measurements are recorded in centimeters. Answer the following questions using the Histogram Applet. Is 1.7cm a Plausible mean value? Explain.
In a Singapore Edition of Business Times, diamond pricing we explored. The price of a diamond is based on the diamond's weight, color, and clarity. A Simple random sample of 18 one-half-carat diamonds had the following prices, in dollar's:
Share with your peers the null and alternative hypotheses for a decision that is relevant to your life. This can be a personal item or something at work.
question the international chef inc. markets three blends of oriental tea premium duke grey and breakfast. the firm
Developing a linear programming problem using Commuter Bus scheduling to minimize the total cost.
computing the mean and standard deviation for the given data.1.a population of scores has micro 50 and s 12. if you
The Oakland Bombers professional basketball team just missed making the playoffs last season and believes it needs to sign only one very good free agent to make the palyoffs next season.
How large should n be so that a 90% confidence interval for µ has a margin of error and What is the P-value for a test of the hypotheses
The advertising agency promoting the new Keem dishwashing soap wants to get the best exposure possible for the product within the $100,000 advertising budget ceiling placed upon it.
If he succeeds he will obtain 2000 US dollars. suppose that thief currently has 1500 US dollars in his pocket. Compute expected value of this undertaking.
Determining sample-size is important step when planning a statistical study. It is also quite a difficult task since many variables must be considered.
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