Question
The piston rings are used to reject when a certain dimension is not within the specifications...
The piston rings are used to reject when a certain dimension is not within the specifications 1.5±d. It is known that this measurement is normally distributed with mean 1.50 mm and standard deviation 0.20 mm.
(4). Find the value d such that the specifications cover 90% of the measurements.
(5). What is the probability that the measurement of a selected piston ring will be more than 3 mm?
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
The piston rings are used to reject when a certain dimension is not within the specifications...
The piston rings are used to reject when a certain dimension
is not within the specifications 1.5±d.
It is known that this measurement is normally distributed with mean
1.50 mm and standard deviation 0.20 mm.
(4).
Find the value d such that the specifications cover 90% of the
measurements.
(5).
What is the probability that the measurement of a selected piston
ring will be more than 3 mm?
Question 1 Suppose that the scores of the semester exam has a normal distribution with mean...
Question 1
Suppose that the scores of the semester exam has a normal
distribution with mean of 120 and standard deviation of 17. If the
bottom 30% of the students failed in the exam.
(1). What was the passing score?
Question 2
A 100-watt light bulb has an average brightness of 1640 lumens,
with a standard deviation of 62 lumens. Suppose that the brightness
of bulbs follows normal distribution, then
(2). In a lot of 10000 such bulbs, what would...
A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is...
A manufacturer produces piston rings for an automobile engine.
It is known that ring diameter is approximately normally
distributed. A random sample of 15 rings has a mean diameter of x
̅=74.036 mm with a standard deviation of 0.02 mm.
(a) Test the hypothesis that the mean piston ring
diameter is 74 mm using the P-value method. Use α = 0.01.
(b) Construct a 99% two-sided confidence interval on
the mean piston ring diameter.
(c) Construct a 95% lower-confidence limit...
A manufacturer of paper used for packaging requires a minimum strength of 1500 g/cm2. To check...
A manufacturer of paper used for packaging requires a minimum
strength of 1500 g/cm2. To check on the quality of the
paper, a random sample of 11 pieces of paper is selected each hour
from the previous hour's production and a strength measurement is
recorded for each. The standard deviation σ of the
strength measurements, computed by pooling the sum of squares of
deviations of many samples, is known to equal 150 g/cm2,
and the strength measurements are normally distributed....
When used in a particular DVD player, the lifetime of a certain brand of battery is...
When used in a particular DVD player, the lifetime of a certain
brand of battery is normally distributed with a mean value of 12
hours and a standard deviation of 0.8 hours. Suppose that two new
batteries are independently selected and put into the player. The
player ceases to function as soon as one of the batteries fails.
(Use a table or technology.)
(a) What is the probability that the DVD player functions for at
least 10 hours? (Round your...
1. A 95% CI for a population mean is 44.1±4.88 .(a) Can you reject the null...
1. A 95% CI for a population mean is 44.1±4.88
.(a) Can you reject the null hypothesis that ?=37 at
the 5% level? (Type: YES or NO or CANNOT TELL):
(b) Can you reject the null hypothesis that ?=48 at the
5% level? (Type: YES or NO or CANNOT TELL):
(c) In general, you fail to reject the null hypothesis if
? is the confidence interval. (Type: IN or NOT IN) :
2 . A random sample of size ?...
1. Write the corresponding letter of the distribution used to conduct the test to answer the...
1. Write the corresponding letter of the distribution used to
conduct the test to answer the question or to find the probability
requested in the blank to the left of the given information. You
will only use each letter once.
a. Student’s T
b. Standard Normal
c. Chi-Square
d. Binomial
e. Poisson
_________________Suppose that a doctor claims that 17 year olds
have an average body temperature that is warmer than the commonly
accepted average human temperature of µ = 98.6...
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean...
Suppose the lengths of the pregnancies of a certain
animal are approximately normally distributed with mean 217 days
and the standard deviation 12 days.
(a) What is the probability that a randomly selected pregnancy
lasts less than 213 days?
The probability that a randomly selected pregnancy lasts less
than
213 days is approximately ?(Round to four decimal places as
needed.)
Interpret this probability. Select the correct choice
below and fill in the answer box within your choice.
(Round to the...
Example 1: Among females in the US in a given age cohort, a diastolic blood pressure...
Example 1: Among females in the US in a given age cohort, a
diastolic blood pressure is normally distributed with mean µ = 95
mm Hg and standard deviation σ = 15 mm Hg. a) What is the
probability that a randomly selected woman has a diastolic blood
pressure less than 90 mm Hg? b) What is the probability that she
has a diastolic blood pressure greater than 95 mm Hg? c) What is
the probability that she has a...
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean...
Suppose the lengths of the pregnancies of a certain animal are
approximately normally distributed with mean mu equals 263 days and
standard deviation sigma equals 15 days. Complete parts (a)
through (f) below. (a) What is the probability that a randomly
selected pregnancy lasts less than 257 days? The probability that
a randomly selected pregnancy lasts less than 257 days is
approximately nothing. (Round to four decimal places as needed.)
Interpret this probability. Select the correct choice below and
fill...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 8 minutes ago
asked 14 minutes ago
asked 16 minutes ago
asked 19 minutes ago
asked 40 minutes ago
asked 45 minutes ago
asked 51 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago