CNNBC recently reported that the mean annual cost of auto insurance is 970 dollars. Assume the standard deviation is 233 dollars. You take a simple random sample of 77 auto insurance policies. Assuming the original population forms a bell-shaped distribution, answer the following and round your answers to three decimals. Find the probability that a single randomly selected value exceeds 971 dollars. Find the probability that a sample of size n=77�=77 is randomly selected with a mean that exceeds 971 dollars

CNNBC recently reported that the mean annual cost of auto insurance is 970 dollars. Assume the standard deviation is 233 dollars. You take a simple random sample of 77 auto insurance policies. Assuming the original population forms a bell-shaped distribution, answer the following and round your answers to three decimals. Find the probability that a single randomly selected value exceeds 971 dollars. Find the probability that a sample of size n=77�=77 is randomly selected with a mean that exceeds 971 dollars

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

The weights of steers in a herd are distributed normally. The standard deviation is 200lbs and the mean steer weight is 1300lbs. Find the probability that the weight of a randomly selected steer is between 1000 and 1437⁢lbs. Round your answer to four decimal places.
The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find the mean, median, mode, and standard deviation. Round to one decimal place as needed. 20, 23, 25, 28, 30, 32, 35, 35 Mean = Median = %3D Mode = Standard Deviation =
The weights of steers in a herd are distributed normally. The standard deviation is 200lbs and the mean steer weight is 1400lbs. Find the probability that the weight of a randomly selected steer is between 1539 and 1679lbs. Round your answer to four decimal places.
A maths class has 100 members. If there is a 15% absentee rate per class meeting , find the standard deviation of the number of students who will be absent from each class?
The sample mean amount of savings is $
What type of distribution is this : you measure the GPA of every student in a high school to the nearest thousandth?
In the 2014 MLB season the Los Angeles Dodgers won 94 games and lost 68 to finish in first place in the National League Western Division. Over the 162 games of the regular season they scored an average of 4.43 runs per game, with a standard deviation of 2.88 runs per game. The distribution of their 162 run PERFORMANCES is roughly symmetric, unimodal, and bell-shaped. Dodger Stadium. Photo credit losangeles.dodgers.mlb.com Skete what this distIDUGIONS d mean + 3 SD. n fa a NO wat p In what number of their games would you expect the Dodgers to score fewer than 5.5 runs?
The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find the mean, median, mode, and standard deviation. Round to one decimal place as needed.20, 23, 26, 28, 30, 32, 33, 33
There are eight patients waiting in a doctor's waiting room. They have been waiting for 9 minutes, 2 minutes, 5 minutes, 4 minutes, 12 minutes, 7 minutes, 8 minutes, and 11 minutes. Calculate the population standard deviation for the patients' wait times (in minutes). Round to the nearest hundredth as needed.
The life of light bulbs is distributed normally. The standard deviation of the lifetime is 30 hours and the mean lifetime of a bulb is 525 hours. Find the probability of a bulb lating for between 538 and 545 hours. Round to four decimals
The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find the mean, median, mode, and standard deviation. Round to one decimal place as needed. Use technology.20, 22, 26, 27, 29, 32, 33, 33Mean = Median = Mode = Standard Deviation =
The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find the mean, median, mode, and standard deviation. Round to one decimal place as needed. Use technology.19, 22, 26, 28, 29, 31, 35, 35Mean = Median = Mode = Standard Deviation =