Calculate the probability that a random sample of 40, Ask an Expert

Statistics

The length of children's full-length movies are known to follow a normal distribution with a mean of 78 minutes and a SD of 25 minutes. Calculate the probability that a random sample of 40 children's full-length movies produces an average length of 85 minutes or more.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9447463

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Parents who did not finish high school have sat math scores

Parents who did not finish high school have SAT math scores X with mean 451 and standard deviation 103. Scores Y of children of parents with graduate degrees have mean 567 and standard deviation 104. Perhaps we should st ...

Yu obtain a 250000 mortgage loan from bank of

You obtain a $250,000 mortgage loan from Bank of Montreal to buy a house. The mortgage has a 5-year fixed rate of 4%/year (using Canadian mortgage convention), and the amortization period of the mortgage is 20 years. (b) ...

How does wholesale banking differ from retail banking in

How does wholesale banking differ from retail banking in terms of: (a) product range; (b) client coverage; (c) marketing; (4) risk management; (5) pricing.

A fair die is rolled 36 times what is the standard

A fair die is rolled 36 times. What is the standard deviation of the even number (2, 4, or 6) outcomes?

A college offers 2 introductory courses in history 3 in

A college offers 2 introductory courses in history, 3 in science, 4 in philosophy, 4 in mathematics, and 5 in English. If a freshman takes one course in each area during her first semester, how many course selections are ...

If a study was done to measure the total brain volume of

If a study was done to measure the total brain volume of patients that had schizophrenia and also of patients that are normal. Table 1 has the total brain volume of the normal patients and table 2 has the total brain vol ...

A spinner is divided into five equal sectors labeled 1

A spinner is divided into five equal sectors labeled 1 through 5. What is the probability of getting at most two prime numbers in three spins?

A fifteen percent of the us population is greater than 65

A. Fifteen percent of the U.S. population is greater than 65 years of age. If a sample of 100 persons is chosen, what is the probability that fewer than 10 are more than 65 years old? B. In a sample of size 100 from the ...

Question the probability a beginning golfer makes a good

Question: The probability a beginning golfer makes a good shot if he selects the correct club is 1/3. The probability the shot is good with the wrong club is 1/5. In his bag are four different clubs, only one of which is ...

In 1896 the first us open golfnbspchampionship was held the

In 1896, the first U.S. Open Golf Championship was held. The winner's prize money was $160. In 2012, the winner's check was $1,360,000. Requirement 1: What was the annual percentage increase in the winner's check over th ...

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