This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The mean diameter of a ball bearing produced by a certain manufacturer is 0.80 cm with a standard ... (Read 48 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
on: Jun 24, 2018
The mean diameter of a ball bearing produced by a certain manufacturer is 0.80 cm with a standard deviation of 0.03 cm. A sample of 36 ball bearings is randomly selected from a production run. Use Excel to answer the following questions:
 a. What is the probability that the sample of ball bearings will have a mean less than 0.798 cm?
  b. What is the probability that the sample of ball bearings will have a mean of at least 0.815 cm?
  c. What is the probability that the sample of ball bearings will have a mean between 0.798 and 0.815 cm?
 d. For samples of size 36, 15 of all sample means are at most what diameter?

Question 2

For a standard normal distribution, the probability of z  0 is _____.
 a. 0
  b. .5
  c. .5
  d. 1


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dinolord

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .344578
=NORM.DIST(0.798,0.8,0.005,TRUE)
b. .00135
=1  NORM.DIST(0.815,0.8,0.005,TRUE)
c. .654072
=NORM.DIST(0.815,0.8,0.005,TRUE)
NORM.DIST(0.798,0.8,0.005,TRUE)
d. .794818
=NORM.INV(0.15,0.8,0.005)

Answer to Question 2

c


ts19998

  • Member
  • Posts: 531
Reply 2 on: Jun 24, 2018
:D TYSM

zacnyjessica

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t
Items that would be difficult to replace bearing legal significance are sent by certified mail. Items that would be difficult to replace bearing legal significance are sent by certified mail.
The Standard Rain Gauge The Standard Rain Gauge
A batter hits a home run in which the ball travels 110 m horizontally with no appreciable ... A batter hits a home run in which the ball travels 110 m horizontally with no appreciable ...
A $50 000 bond bearing interest at 6.5% bond payable semi-annually matures in 10 years. If it ... A $50 000 bond bearing interest at 6.5% bond payable semi-annually matures in 10 years. If it ...
a billiard ball physics question a billiard ball physics question
Video: Spinal Cord Injury Animation

For a complete list of videos, visit our video library