If the estimate is to be within 8 mpg of the true mean with, Ask an Expert

Statistics

The Arkansas State Police wish to estimate the average mph being traveled on the Interstate Highways, which cross the state. If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph, how large a sample size must be taken?

A) 42

B) 15

C) 329

D) 14

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9163021

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Suppose you invest 2000 today and receive 9500 in five

Suppose you invest $2,000 today and receive $9,500 in five years. a. What is the internal rate of return? (IRR) of this? opportunity? b. Suppose another investment opportunity also requires $2,000 upfront, but pays an eq ...

What statistic was calculated to determine differences

What statistic was calculated to determine differences between the intervention and control groups for the lumbar and femur neck BMDs? Were the groups significantly different for BMDs?

1 according to the national health and nutrition

1. According to the National Health and Nutrition Examination Survey, published by the National Center for Health Statistics, the serum (noncellular portion of blood) total cholesterol level of US females 20 years old or ...

Boxes of sugar are filled by machine with considerable

Boxes of sugar are filled by machine with considerable accuracy. The distribution of box weights is normal and has a mean of 32 ounces with a standard deviation of only 2 ounces. A quality control inspector takes a sampl ...

A student must answer 6 multiple choice questions for a

A student must answer 6 multiple choice questions for a test, but the student did not study well. There are 6 answers per question, but only one is correct. If the student randomly guesses on each questions, what is the ...

The probability that a shot will hit the target is 002

The probability that a shot will hit the target is 0.02. Successive shots are independent of each other. What is the probability that at least one out of four shots will hit the target?

Ryan braun has just tested positive for gorilla growth

Ryan Braun has just tested positive for Gorilla Growth hormone. You are his lawyer. Given the following information, do you think you could get him off? Explain your reasoning. P(positive test | drug use) = 0.99 P(positi ...

A sample of 175 randomly selected students found that the

A sample of 175 randomly selected students, found that the proportion of students planning to travel home for thanksgiving is 0.64 What is the standard deviation of the sampling distribution.

5 of females smoke cigarettes what is the probability that

5% of females smoke cigarettes. What is the probability that the proportion of smokers in a sample of 865 females would be greater than 3%

An all-equiry business has 175m shares outstanding selling

An all-equiry business has 175M shares outstanding selling for $20/share. Management believes interest rates are unreasonably low and decides to execute a leveraged recapitalization. It will raise $1B in debt and repurch ...

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