Question

An industrial sewing machine uses ball bearings that are targeted to have a diameter of 0.78 inch. The lower and upper specification limits under which the ball bearings can operate are 0.76 inch and 0.80

inch, respectively. Past experience has indicated that the actual diameter of the ball bearings is approximately normally distributed, with a mean of

0.782 inch and a standard deviation of 0.008 inch. Complete parts (a) through (e) below.

a. What is the probability that a ball bearing is between the target and the actual mean?

(Round to four decimal places as needed.)

b. What is the probability that a ball bearing is between the lower specification limit and the target?

(Round to four decimal places as needed.)

c. What is the probability that a ball bearing is above the upper specification limit?

(Round to four decimal places as needed.)

d. What is the probability that a ball bearing is below the lower specification limit?

nothing

(Round to four decimal places as needed.)

e. Of all the ball bearings, 94% of the diameters are greater than what value?

Answer #1

An industrial sewing machine uses ball bearings that are
targeted to have a diameter of 0.76 inch. The lower and upper
specification limits under which the ball bearings can operate are
0.75 inch and 0.77 ?inch, respectively. Past experience has
indicated that the actual diameter of the ball bearings is
approximately normally?distributed, with a mean of 0.764 inch and a
standard deviation of 0.007 inch. Complete parts? (a) through? (e)
below.
a. What is the probability that a ball bearing...

An industrial sewing machine uses ball bearings that are
targeted to have a diameter of 0.75 inch.The lower and upper
specification limits under which the ball bearings can operate are
0.74 inch and 0.76 inch, respectively. Past experience has
indicated that the actual diameter of the ball bearings is
approximately normally distributed, with a mean of 0.753 inch and a
standard deviation of 0.004 inch. What is the probability that a
ball bearing is
A.
between the target and...

An industrial sewing machine uses ball bearing that are targeted
to have a diameter of 0.74 inch. The lower and upper specification
limits under which the ball bearings can operate are 0.72 inch and
0.76 inch, respectively. Past experience has indicated that the
actual diameter of the ball bearings is approximately normally
distributed, with a mean of 0.745 inch and a standard deviation of
0.009 inch. Complete parts a through e below.
a. What is the probability that a ball...

1.) True or False? All continuous distributions are normally
distributed.
2.)
What is the uniform distribution also known as?
Rectangular distribution
Box distribution
Polygon distribution
Square distribution
3.) An industrial sewing machine uses ball bearings that are
targeted to have a diameter of 0.75 inch. The lower and upper
specification limits under which the ball bearing can operate are
0.74 inch and 0.76 inch, respectively. Past experiences has
indicated that the actual diameter of the ball bearing is
approximately normally...

The diameters of ball bearings are distributed normally. The
mean diameter is 135millimeters and the variance is 9. Find the
probability that the diameter of a selected bearing is between 137
and 139millimeters. Round your answer to four decimal places.

The diameters of ball bearings are distributed normally. The
mean diameter is 89 millimeters and the variance is 9. Find the
probability that the diameter of a selected bearing is between 83
and 91 millimeters. Round your answer to four decimal
places.

The diameters of ball bearings are distributed normally. The
mean diameter is 125 millimeters and the standard deviation is 3
millimeters. Find the probability that the diameter of a selected
bearing is greater than 127 millimeters. Round your answer to four
decimal places.

The diameters of ball bearings are distributed normally. The
mean diameter is 106 millimeters and the standard deviation is 4
millimeters. Find the probability that the diameter of a selected
bearing is greater than 111 millimeters. Round your answer to four
decimal places

The diameters of ball bearings are distributed normally. The
mean diameter is 96 millimeters and the standard deviation is 6
millimeters.
Find the probability that the diameter of a selected bearing is
between 89 and 105 millimeters. Round your answer to four decimal
places.

The diameters of ball bearings are distributed normally. The
mean diameter is 120120 millimeters and the standard deviation is
44 millimeters. Find the probability that the diameter of a
selected bearing is greater than 125125 millimeters. Round your
answer to four decimal places.

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