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Determining the probability from the given situation.

A certain company relies heavily on phone orders. Suppose past records show that R% of all incoming phone calls to this company are orders from customers. At least how big must R be for you to be at least 90% sure that the first phone order of the day will occur on or before the tenth incoming call of the day?

Subject:

Statistics

Topic:

All Topics

Posting ID:

2707

OTA ID:

101298

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statistics

Scores on a college admissions exam are normally distributed with mean score 642 and standard deviation 76. The college wants to set the passing score so that only the best 10% of all applicants pass. what is the passing score?

Subject:

Statistics

Topic:

All Topics

Posting ID:

2708

OTA ID:

102799

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Determining the probability using mean and standard deviation from the given situation.

The weights of adult Americans are normal with a mean of 164 lbs. and a standard deviation of 24 lbs. Two random samples are taken with 10 adult Americans in each sample. (a) What is the probability that both samples have a mean greater than 180 lbs.? (b) What is the probability that, when the two samples are put together, the mean weight of all 20 people will be greater than 180 lbs? (c) Compare the results in (a) and (b). Explain.

Subject:

Statistics

Topic:

All Topics

Posting ID:

2709

OTA ID:

101352

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Statistics

a. What is the implied population? b. What is the sample? 2. Draw a bar chart/graph for the following data 3. Find the mean, median, mode and standard deviation of the data from problem 2. 4. Find the probabilities for the random variable x 5. Find the mean, mode and standard deviation for the data in problem 4. See attachment

Subject:

Statistics

Topic:

All Topics

Posting ID:

2730

OTA ID:

102454

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Determining the probability from the given Colgate story.

Colgate-Palmolive Makes a "Total" Effort In the mid-1990s, Colgate-Palmolive had developed a new toothpaste for the U.S. market, Colgate Total, with an antibacterial ingredient that was already being successfully sold overseas. However, the word antibacterial was not allowed for such products by the Food and Drug Administration rules. So Colgate-Palmolive had to come up with another way of marketing this and other features of their new toothpaste to U.S. consumers. Market researchers told Colgate-Palmolive that consumers were weary of trying to discern among the different advantages of various toothpaste brands and wanted simplification in their shopping lives. In response, the name "... click for more

Subject:

Statistics

Topic:

All Topics

Posting ID:

2796

OTA ID:

101352

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