A normal distributed with a mean of six months with a standard deviation of 1.1 months...

A normal distributed with a mean of six months with a standard deviation of 1.1 months find the probability it will last for less than six months and more than nine minutes

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orchestra answered 2 years ago

SAT scores normal distributed mean 985 and standard deviation of 169. AMT scores are normally distributed...

SAT scores normal distributed mean 985 and standard deviation of 169. AMT scores are normally distributed with a mean of 24.6 and a standard deviation of 3.5. It is assumed that the two tests measure thw same aptitude bit use different scales. a). if a student is 46-percentile in SAT, find the actual SAT score. b). what would be the equivalent AMT score? c). if a student gets SAT score of 1220, find the equivalent AMT score.

The length of human pregnancies is approximately normal distributed with mean =266 days and Standard Deviation...

The length of human pregnancies is approximately normal distributed with mean =266 days and Standard Deviation = 16 days ( 20 points ) . Exercise 8.1 What is the probability a randomly selected pregnancy lasts less than 260 days? Suppose a random sample of 20 pregnancies is obtained. Describe the sample distribution the sampling distribution of sample mean of human pregnancies. What is the probability that a random sample of 20 pregnancies has a mean gestation period of 260 days...

Potatoes: Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 8.5 ounces and a standard deviation of 1.1 ounces.

Potatoes: Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 8.5 ounces and a standard deviation of 1.1 ounces. Round your answers to 4 decimal places. (a) If one potato is randomly selected, find the probability that it weighs less than 7 ounces.(b) If one potato is randomly selected, find the probability that it weighs more than 12 ounces.(c) If one potato is randomly selected, find the probability that it weighs between 7 and 12...

What is the standard deviation of the standard normal distribution? What is the mean of the...

What is the standard deviation of the standard normal distribution? What is the mean of the standard normal distribution? All symmetric distributions are normal distributions. True or false? Assume body temperature scores are normally distributed in the population with a mean of 36.81°C and a standard deviation of 0.41°C. A person's body temperature is 37.33°C. Calculate their z-score. (Round answer to 2 decimal places) Calculate the z-score for a person who has a body temperature of 35.72°C. (Round answer to...

F) If X is distributed normal with an average of 5 and a standard deviation of...

F) If X is distributed normal with an average of 5 and a standard deviation of 2.5 Determines the 97.5 percentile POSSIBLE ANSWERS: a: 9.89 b: 9.11 c: 8.20 d: 10.81 G) The scores of a proficiency test are based on a normal distribution, with an average of 1,500 points and a standard deviation of 300 points. A school wishes to offer honorary scholarships to those students who obtain scores that place them at the top 5%. What is the...

a. A population is normally distributed with a mean of 16.4 and a standard deviation of...

a. A population is normally distributed with a mean of 16.4 and a standard deviation of 1.4. A sample of size 36 is taken from the population. What is the the standard deviation of the sampling distribution? Round to the nearest thousandth. b. A population is normally distributed with a mean of 15.7 and a standard deviation of 1.4. A sample of size 24 is taken from the population. What is the the standard deviation of the sampling distribution? Round...

The weights of baby boys at six months is normally distributed with a mean of 17.25...

The weights of baby boys at six months is normally distributed with a mean of 17.25 lbs. and a standard deviation of 2.0 lbs. By an age of twelve months, the mean increases to 22.50 lbs. and the standard deviation is 2.2 lbs. Which age group has the wider distribution? When baby turn 1 year old has the wider dist. What percentage of the twelve-month old boys weigh more than 26.9 lbs.? What percentage of six-month old boys weigh between...

A distribution of values is normal with a mean of 190 and a standard deviation of...

A distribution of values is normal with a mean of 190 and a standard deviation of 15. From this distribution, you are drawing samples of size 35. Find the interval containing the middle-most 82% of sample means: Enter your answer using interval notation. In this context, either inclusive or exclusive intervals would be acceptable. Your numbers should be accurate to 1 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

A distribution of values is normal with a mean of 114.8 and a standard deviation of...

A distribution of values is normal with a mean of 114.8 and a standard deviation of 98.5. Find the probability that a randomly selected value is between 16.3 and 26.2

A distribution of values is normal with a mean of 80 and a standard deviation of...

A distribution of values is normal with a mean of 80 and a standard deviation of 18. From this distribution, you are drawing samples of size 12. Find the interval containing the middle-most 88% of sample means: Enter your answer using interval notation. In this context, either inclusive or exclusive intervals would be acceptable. Your numbers should be accurate to 1 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

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