A manufacturer knows that their items have a normally distributed length, with a mean of 18.8 inches, and standard deviation of 2.3 inches. If one item is chosen at random, what is the probability...

A manufacturer knows that their items have a normally distributed length, with a mean of 18.8 inches, and standard deviation of 2.3 inches. If one item is chosen at random, what is the probability...

An auto analyst is conducting a satisfaction survey, sampling from a list of 10,000 new car buyers. The list includes 2,500 Ford buyers, 2,500 GM buyers, 2,500 Honda buyers, and 2,500 Toyota buye...

x=10, 30, 50, 70, 90 y= 17, 5a+3, 32, 7a-11, 19

When someone buys a ticket for an airline flight, there is a 0.0988 probability that the person will not show up for the flight. A certain jet can seat 15 passengers. Is it wise to book 17 passengers...

X|26 |27| 28 | 29 | 30|31 |32 f| 3 | 4 | 16 | 12 | 6 | 2 | 1 Compute the sample mean and the sample standard deviation. Show your work.

The authors of the paper "Fudging the Numbers: Distributing Chocolate Influences Student Evaluations of an Undergraduate Course"† carried out a study to see if events unrelated to an undergraduate...

In a certain state license plates consist of 4 letters (26 letters in the alphabet) followed by 4 numbers (0-9). How many different license plates can be made in which no letter or number appears...

Between z=0 and z=1.95

70% of all children live with a dog. If 25 children were selected at random, what is the probability that at most 10 of them will be living with a dog?

Assume you have the scores of the first, second, and final exam for a group of students. Suppose a student miss the first and/or second exam. What are the most appropriate statistics approaches that...

Consider the following data set with 10 observation 4,6,6,7,11,13,15,16,x. Find 3 values of x for which mean equal mode

I have five different races and need to see if pre and post test data is significantly different. I am using spss but am not sure exactly how to do that. What are my variables, etc?&n...

Assume that a procedure yields a binomial distribution with a trial repeated n=12 times. Use either the binomial probability formula (or technology) to find the probability of k=2 successes given...

Probability question: Assume the following scenario. You have 10 numbers and you pick one at random. You write it down. You now pick from the same 10 numbers and write the second result down. In order...

After working at the Tropical Fruit Cafe for many years, the manager noticed the following about the customers' ordering and seating preferences: (i) 30% of the customers order Fancy Fruit Salad,...

Using the Binomial distribution, If n=6 and p=0.5, find P(x=6). (round to 4 decimal places)

A baseball player has a batting average of 0.37. What is the probability that he has exactly 3 hits in his next 7 at bats? (round to 4 decimal places)

Determine whether the following statement makes sense (or is clearly true) or does not make sense (or is clearly false). A psychologist suspects that breathing exercises can help people with...

A specialty shoe manufacturer developed a new insole for running shoes. A study was produced in which some participants were given the insoles of a competitor’s product without the participants’ knowledge...

For the standard normal distribution, find the area within one standard deviation of the mean that is, the area between μ − σ and μ + σ. Round to four decimal places. Show...