Question

The length of country and western songs is normally distributed and has a mean of 200seconds...

The length of country and western songs is normally distributed and has a mean of 200seconds and a standard deviation of 25 seconds. Find the probability that a randomselection of 9 songs will have mean length of 188.58 seconds or less. Assume thedistribution of the lengths of the songs is normal.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1) Find the probability using the standard normal distribution. a) 0.5900 b) 0.3409 c) 0.8409 d)0.6591...
1) Find the probability using the standard normal distribution. a) 0.5900 b) 0.3409 c) 0.8409 d)0.6591 2) Find the z value that corresponds to the given area. 3) The length of country and western songs is normally distributed and has a mean of 170 seconds and a standard deviation of 20 seconds. Find the probability that a random selection of 16 songs will have mean length of 164.15 seconds or less. Assume the distribution of the lengths of the songs...
The length of western rattlesnake are normally distributed with a mean of 60 inches and standard...
The length of western rattlesnake are normally distributed with a mean of 60 inches and standard deviation of 4 inches. What is the probability that the rattlesnake length will be equal to or less than 54.2 inches
Suppose that the length of popular songs follows a Normal Distribution with a mean of 234...
Suppose that the length of popular songs follows a Normal Distribution with a mean of 234 seconds with a standard deviation of 31 seconds. Below what length are the shortest 12% of songs? Between what two lengths are the middle 80% of songs?
A student suspects that the length of all songs currently on her iPod are approximately normally...
A student suspects that the length of all songs currently on her iPod are approximately normally distributed with a mean of 257 seconds and a standard deviation of 62 seconds. Report all answers with two decimal places. a. What proportion of songs are less than 200 seconds? b. What proportion of songs are between 210 and 320 seconds? c. The shortest 10% of songs are shorter than what length?
A student has a large digital music library. The mean length of the songs is 258...
A student has a large digital music library. The mean length of the songs is 258 seconds with a standard deviation of 87 seconds. The student creates a playlist that consists of 30 randomly selected songs. a.Is the mean value of 258 seconds a parameter or a statistic? Explain. b.What should the student expect the average song length to be for his playlist? c.What is the standard error for the mean song length of 30 randomly selected songs? d.Would a...
Ayla has liked thousands of songs on Spotify. The distribution of play times for these songs...
Ayla has liked thousands of songs on Spotify. The distribution of play times for these songs has a mean of 175 seconds and a standard deviation of 55 seconds. If 36 of Ayla’s “liked” songs are randomly sampled, what is the probability that the average length of these 36 songs is less than 185 seconds?
A. A manufacturer knows that their items have a normally distributed length, with a mean of...
A. A manufacturer knows that their items have a normally distributed length, with a mean of 11.7 inches, and standard deviation of 1.4 inches. If one item is chosen at random, what is the probability that it is less than 9 inches long? B. A manufacturer knows that their items have a normally distributed lifespan, with a mean of 8.6 years, and standard deviation of 2.6 years. If you randomly purchase one item, what is the probability it will last...
1)A manufacturer knows that their items have a normally distributed length, with a mean of 13.8...
1)A manufacturer knows that their items have a normally distributed length, with a mean of 13.8 inches, and standard deviation of 3.7 inches. If 9 items are chosen at random, what is the probability that their mean length is less than 12.5 inches?
Pregnancy lengths are normally distributed with a mean of 280 days and a standard deviation of...
Pregnancy lengths are normally distributed with a mean of 280 days and a standard deviation of 20 days. Find the probability that if a sample of 50 pregnancies are chosen at random that the mean length is less than 270 days.
A manufacturer knows that their items have a normally distributed length, with a mean of 16.5...
A manufacturer knows that their items have a normally distributed length, with a mean of 16.5 inches, and standard deviation of 3.1 inches. If 9 items are chosen at random, what is the probability that their mean length is less than 18.4 inches? (Give answer to 4 decimal places.)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT