Mathematics

Luis Berg

31 August, 14:04

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.2. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 16 pins is at least 51

+5

Answers (1)

Know the Answer?

Not Sure About the Answer?

Get an answer to your question ✅ “Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.2. (round your answers to ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.

Search for Other Answers

You Might be Interested in

Suppose that the moment of inertia of a skater with arms out and one leg extended is 2.9 kg⋅m2 and for arms and legs in is 0.90 kg⋅m2. if she starts out spinning at 4.

The number of calories burned at the gym is normally distributed with a mean of 425 and a standard deviation of 51. Find the z-scores for each data value.

Is 23/10 greater than 23%

What is the [H+] of a solution with a pH of 6.6? Use a scientific calculator.

N+5n=30 what does n equal

New Questions in Mathematics

Round 40.82 to the nearest hundreth

9 9/10 + 6 7/10 add and reduce to lowest terms

What is the domain of the function { (1, 1), (0, 0), (2, - 1) }

What is the product of 4xy and y^2 + 2x? A) 4xy + 4xy^3 B) 8x^2y + 4xy^2 C) 8x^2 + 4xy^3 D) 8x^2y + 4xy^3

Gregg is trying to save $800 for a vacation. He makes $15 an hour and works 40 hours a week for a total of $600 a week. After paying expenses he saves 1 3 of his earnings. Which calculation yields the amount of money Gregg saves each week?