The state highway department is studying traffic patterns, Ask an Expert

Statistics

Find sample size to estimation a population mean.

The state highway department is studying traffic patterns on one of the busiest highways in the state. As part of the study, the department needs to estimate the average number of vehicles that pass an intersection each day. A random sample of 64 days gives us a sample mean of 14,205 cars and a sample standard deviation of 1,010 cars. After calculating the confidence interval, the highway department officials that the precision is too low for their needs. They feel the precision should be 300 cars. Given this precision and needing to be 99% confident, how many days do they require to sample?

A. 109
B. 76
C. 75
D. 62
E. 9

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9169503
Price:- $10

Guranteed 24 Hours Delivery, In Price:- $10

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Is the following an example of a binomial experimentat a

Is the following an example of a binomial experiment? At a campus activities board event, an entertainer gives tickets with sequential numbers to every attendee (i.e. 1, 2, 3, 4, 5... n). Throughout the event, the entert ...

List three ways organizations provide context for their

List three ways organizations provide context for their financial ratios, in other words what is the basis of on which they compare their results?

The random variablenbspxnbsptakes on the values 5 20 30 and

The random variable X takes on the values 5, 20, 30, and 200 with probabilites 0.60, 0.30, 0.08, and 0.02 respectively. Use the statistical capacity of your calculator to find the expected value of X rounded to one p ...

What are some ways being able to visually see data in a

What are some ways being able to visually see data in a graphic presentation beneficial?

When alice spends the day with the babysitter there is a 05

When Alice spends the day with the babysitter, there is a 0.5 chance she turns on the TV and watches a show. Her little sister Betty cannot turn on the TV by herself. But once the TV is on, Betty watches with probability ...

1 it appears that new car purchases have peaked in 2018 vs

1) It appears that new car purchases have peaked in 2018 vs. used car purchases. The following probability distribution table shows the random variable x, where x is the number of new cars purchased by household during t ...

Suppose you want to calculate the z-score for your height

Suppose you want to calculate the? z-score for your height. How will the? z-scores compare if you use your height in inches verses? centimeters?

A school district is trying to estimate the proportion of

A school district is trying to estimate the proportion of students at the high school who would eat a school breakfast if the cafeteria were opened to students at 6 am. A new employer opened up within the district and th ...

The computer systems department has 8 faculty 6 are tenured

The computer systems department has 8 faculty, 6 are tenured. A committee is formed of 3 faculty members. If members are submitted at random: - What is the probability all members of the committee are tenured? - What is ...

With whom should you consult about design strategies to

With whom should you consult about design strategies to improve products/services and why would you consult with these individuals or groups?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert