Question

A manufacturer considers his production process to be out of
control when defects exceed 3%. In a random sample of 85 items, the
defect rate is 5.9% but the manager **claims that this is
only a sample fluctuation and the production is not really out of
control** . At the 0.01 level of significance, test the
managers claim.

HINTS: 1.57, 0.0582, 2.33

A) Step 1: What is the claim? Be careful, this is a tricky
question; but the claim is in **BOLD** above. Which of
these answers is it p<.03, p>.03, p=.03, P<=.03,
p>=.03, or p=/=.03?

B) Step 2: What is the Hypothesis set up?

C) Is the claim related to the null hypothesis, or the alternate hypothesis?

D) Step 3: Calculate the test statistic: What is it?

E) You only need one of these answers: What is the P-value or Critical Z value?

F) Step 4: Do we "Reject Ho" or "Fail to reject the null hypothesis"?

G) Step 5: State the conclusion (must include 3 parts as discussed in lecture)

Answer #1

A manufacturer considers his production process to be out of
control when defects exceed 3%. In a random sample of 185 items,
the defect rate is 5.9%. The manager claims that this is due only
to the sample fluctuation (random sampling variation) and that the
process is not really out of control.
a. Test his claim at the 0.01 level of significance. Use both
the RR and P-Value (Methods).
b. Assume that in fact the proportion of defects really is...

A manufacturer considers his production process to be out of
control when defects exceed 3%. In a random sample of 185 items,
the defect rate is 5.9%. The manager claims that this is due only
to the sample fluctuation (random sampling variation) and that the
process is not really out of control.
a. Test his claim at the 0.01 level of significance. Use both
the RR and P-Value (Methods).
b. Assume that in fact the proportion of defects really is...

A manufacturer considers his production process to be out of
control when defects exceed 3%. In a random sample of 85 items, the
defect rate is 5.9% but the manager claims that this is only a
sample fluctuation and production is not really out of control. At
the 0.01 level of significance, test the manager's claim.
what type of hypothesis test is this?
a. test about the mean when sigma is known
b. one sample proportion test
c. independent two...

Question 3
A manufacturer considers his production process to be out of
control when defects exceed 3%. In
a random sample of 85 items, the defect rate is 5.9% but the
manager claims that this is only a
sample fluctuation and production is not really out of control. At
the 0.01 level of significance,
test the manager's claim.
(a) State the null and alternative hypotheses for the test. [3
marks]
(b) Calculate the value of the test statistic for this...

a manufacturer considers his production process to be
out of control when defects exceed 5%. in a random sample of 67
items the defect rate is 5.4% but the manager claims that this is
only a sample fluctuation and production is not really out of
control. at the 7% level of significance use the o value method to
test the manager's claim.

Perform a hypothesis test for the population proportion
A manufacturer considers his production process to be out of
control when defects exceed 3%. In a random sample of 85 items, the
defect rate is 5.9% but the manager claims that this is only a
sample fluctuation and that production is not really out of
control. At the 0.01 level of significance, do the data provide
sufficient evidence that the percentage of defects exceeds
3%?

Identify the null hypothesis, alternative hypothesis,
test statistic, P-value, conclusion about the null hypothesis, and
final conclusion that addresses the original claim.
A manufacturer considers his production process to be out of
control when defects exceed 3%. In a random sample of 85 items, the
defect rate is 5.9% but the manager claims that this is only a
sample fluctuation and production is not really out of control. At
the 0.01 level of significance, test the manager's claim.

1) The quality control manager of a large candy factory
considers the production process to be out of control when defects
exceed 3%. In a random sample of 85 items, the defect rate is 5.9%.
The control officer states that this is only a sample deviation and
that the production line is not really out of control. At the 0.01
level of significance, test the control manager's claim.
Find the Ho, Ha, Test Statistic, alpha, P-value or critical
value, give...

Perform the following tests answering each part. Assume random
samples taken from populations that are normally distributed. A
manufacturer considers his production process to be out of control
when defects exceed 3%. In a random sample of 85 items, the defect
rate is 5.9% but the manager claims that this is only a sample
fluctuation and production is not really out of control. At the
0.01 level of significance, test the manager's
---What is the Claim in symbolic Format? Question...

A salesman for a new manufacturer of cellular phones claims not
only that they cost the retailer less but also that the percentage
of defective cellular phones found among his products, ( p1 ), will
be no higher than the percentage of defectives found in a
competitor's line, ( p2 ). To test this statement, the
retailer took a random sample of 130 of the salesman's cellular
phones and 105 of the competitor's cellular phones. The retailer
found that 12 of...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 46 minutes ago

asked 52 minutes ago

asked 55 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago