Question

company A uses a new production method to manufacture air craft alimtimeters. A Simple random sample of new altimeters resulted in errord use 0.05 level of signeificance to test the claim that the new production method has error with standard deviation greater than 32.2ft

-42,78, -25,-75,-42,11,19,51,-9,-50,-108,-108

a)find the test statistic

b) determine the critical value

Answer #1

Test the given claim. Assume that a simple random sample is
selected from a normally distributed population. Use either the
P-value method or the traditional method of testing hypotheses.
Company A uses a new production method to manufacture aircraft
altimeters. A simple random sample of new altimeters resulted in
errors listed below. Use a 0.05 level of significance to test the
claim that the new production method has errors with a standard
deviation greater than 32.2 ft, which was the...

Test the given claim. Assume that a simple random sample is
selected from a normally distributed population. Use either the
P-value method or the traditional method of testing hypotheses.
Company A uses a new production method to manufacture aircraft
altimeters. A simple random sample of new altimeters resulted in
errors listed below. Use a 0.05 level of significance to test the
claim that the new production method has errors with a standard
deviation greater than 32.2 ft, which was the...

Test the given claim. Assume that a simple random sample is
selected from a normally distributed population. Use either the
P-value method or the traditional method of testing hypotheses.
Company A uses a new production method to manufacture aircraft
altimeters. A simple random sample of new altimeters resulted in
errors listed below. Use a 0.05 level of significance to test the
claim that the new production method has errors with a standard
deviation greater than 32.2 ft, which was the...

7. A company manufactures altimeters. A simple random sample of
81 altimeters is tested in a pressure chamber, and the errors in
altitude are found to have a standard deviation of 52.3 ft. At 0.05
significance level, test the claim that the production line has a
standard deviation different from 43.7 ft.

Use the traditional method to test the given hypothesis. A
manufacturer uses a new production method to produce steel rods. A
random sample of 17 steel rods resulted in lengths with a standard
deviation of 2.3 cm. At the 0.10 significance level, test the claim
that the new production method has lengths with a standard
deviation different from 3.5 cm, which was the standard deviation
for the old method.
answer options:
There is not sufficient evidence to warrant rejection of...

A manufacturing company makes aircraft altimeters.
These devices are tested in a pressure chamber,
and errors in altitude are recorded as either positive (for
readings that are too high) or negative (for readings
that are too low). Using a long established production
method, the errors for these devices were normally
distributed with a standard deviation of 47.3 ft.
Now, a new production method is to be used; however, there is
some concern that the new method produces
less accurate altimeters....

A manufacturing company makes aircraft altimeters.
These devices are tested in a pressure chamber,
and errors in altitude are recorded as either positive (for
readings that are too high) or negative (for readings
that are too low). Using a long established production
method, the errors for these devices were normally
distributed with a standard deviation of 47.3 ft.
Now, a new production method is to be used; however, there is
some concern that the new method produces
less accurate altimeters....

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Use
either the traditional method or P-value method as indicated.
Identify the null and alternative hypotheses, test statistic,
critical value(s) or P-value (or range of P-values) as appropriate,
and state the final conclusion that addresses the original claim.
36) In tests of a computer component, it is found that the mean
time between failures is 520 hours. A modification is made...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim.
Use either the traditional method or P –value method as
indicated. Identify the null and alternative hypotheses, test
statistic, critical value(s) or P -value, and state the final
conclusion that addresses the original claim. A researcher wants to
test the claim that convicted burglars on average of 18.7 months in
jail. She takes a random sample of 11 such casas from...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative hypotheses, test statistic, critical
value(s), and state the final conclusion that addresses the
original claim. A simple random sample of pages from a dictionary
is obtained. Listed below are the numbers of words defined on those
pages. Given that this dictionary has 1459 pages with defined
words, the claim that there are more than 70,000 defined...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 16 minutes ago

asked 16 minutes ago

asked 38 minutes ago

asked 40 minutes ago

asked 40 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago