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17) Not everyone pays the same price for the same model of a car. For a...

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Statistics

17) Not everyone pays the same price for the same model of acar. For a particular new car the mean price is $18,750 with astandard deviation of $690.   ROUND VALUES CORRECTLY TODOLLAR.

a) Make a sketch of the normal distribution, labeling the centerand ± 1, 2, 3SD intervals with the values.

b) If a car is picked at random, what is the probability thatthe car price is between $17,800 and $19,100?

c) A car in the top 12% will have a price of at least how much?(To nearest dollar)

d) We take many samples of 30 cars of this model. Find thestandard deviation of the sample to nearest dollar. (nosentence)

e) Sketch the sampling distribution if we took many samples of30 of these models of car. (no sentence)

f) What is the probability that a sample of 30 cars, this model,will have a mean price cost of $18,400 or less?

g) A sample of 30 cars, this model, that has an average price inthe top car in the bottom 5% will average price at most how much?(To nearest dollar)

Answer & Explanation Solved by verified expert
3.7 Ratings (655 Votes)
b 18750 690    See Answer
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