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Author Question: If the amount of gasoline purchased per car at a large service station has a population mean of 15 ... (Read 122 times)

CBme

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on: Jun 24, 2018
If the amount of gasoline purchased per car at a large service station has a population mean of 15 gallons and a population standard deviation of 4 gallons, and a random sample of 64 cars is selected, there is approximately a 95.44 chance that the sample mean will be between 14 and 16 gallons.
 
  Indicate whether the statement is true or false

Question 2

If we know that the length of time it takes a college student to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 minute, 75.8 of the college students will take more than how many minutes when trying to find a parking spot in the library parking lot?
 
  A) 2.8 minutes B) 3.2 minutes C) 4.2 minutes D) 3.4 minutes


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nikmaaacs

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Reply #1 on: Jun 24, 2018
Answer to Question 1

TRUE

Answer to Question 2

A


CBme

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Reply #2 on: Jun 24, 2018
Correct answers!


nikmaaacs

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Reply #3 on: Jun 24, 2018
Great! Please up vote :D


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