This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Construct a 98 confidence interval for the population mean, . Assume the population has a normal ... (Read 69 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Jul 24, 2018
Construct a 98 confidence interval for the population mean, . Assume the population has a normal distribution. A study of 14 car owners showed that their average repair bill was 192 with a standard deviation of 8. Round to the nearest cent.
 
  A) (186.33, 197.67 ) B) (222.33, 256.10 ) C) (328.33, 386.99 ) D) (115.40, 158.80 )

Question 2

The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.0 minutes and a standard deviation of 1 minute.
 
  Find the probability that a
  randomly selected college student will take between 1.5 and 4.0 minutes to find a parking spot in the library
  lot.
  A) 0.7745 B) 0.4938 C) 0.0919 D) 0.2255


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

A


theo

  • Hero Member
  • *****
  • Posts: 698
Reply #2 on: Jul 24, 2018
Thank you!


livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 24, 2018
Always glad to help...


« previous next »
 

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Population predictions for 2000–2050, using three different total fertility rates ( Population predictions for 2000–2050, using three different total fertility rates (
Over nearly 30 years, humans removed many polar bears for a variety of reasons, from a population in Over nearly 30 years, humans removed many polar bears for a variety of reasons, from a population in
Chest Configurations, Normal Adult, Barrel Chest, Pectus Carinatum, Pectus Excavatum Chest Configurations, Normal Adult, Barrel Chest, Pectus Carinatum, Pectus Excavatum
Listening to Normal Speech or Its Prosodic Components Functional MRI scans were made while subjects Listening to Normal Speech or Its Prosodic Components Functional MRI scans were made while subjects
Normal oxygen sensor frequency is from about one to five times per second. Normal oxygen sensor frequency is from about one to five times per second.
A deficiency of linoleic acid can interfere with normal growth and result in inflammation A deficiency of linoleic acid can interfere with normal growth and result in inflammation
Video: Parathyroid hormone (bone resorption) & Calcitonin (bone deposition)

For a complete list of videos, visit our video library