64. Production Line Fill Weights. A production line operates with a mean filling weight problem and of 16 ounces per container. Overfilling or underfilling presents a serious when detected requires the operator to shut down the production line to readjust the
64. Production Line Fill Weights. A production line operates with a mean filling weight problem and of 16 ounces per container. Overfilling or underfilling presents a serious when detected requires the operator to shut down the production line to readjust the
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
#64
![Chapter 9 Hypothesis Tests
laque
.8 ounces is
filling mechanism. From past data, a population standard deviation o =
assumed. A quality control inspector selects a sample of 30 items every hour and at
that time makes the decision of whether to shut down the line for readjustment. The
level of significance is a = .05.
a. State the hypothesis test for this quality control application.
b. If a sample mean of x = 16.32 ounces were found, what is the p-value? What action
would you recommend?
c. If a sample mean of x = 15.82 ounces were found, what is the p-value? What action
would you recommend?
d. Use the critical value approach. What is the rejection rule for the preceding
hypothesis testing procedure? Repeat parts (b) and (c). Do you reach the same
conclusion?
65. Scholarship Examination Scores. At Western University the historical mean of
scholarship examination scores for freshman applications is 900. A historical popula-
tion standard deviation o = 180 is assumed known. Each year, the assistant dean use
new](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa0742cae-5e0c-42da-b2ef-62566b20cd9a%2Fb308e255-847f-4598-b6bf-e2409ded1ef4%2Ft1cx8q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Chapter 9 Hypothesis Tests
laque
.8 ounces is
filling mechanism. From past data, a population standard deviation o =
assumed. A quality control inspector selects a sample of 30 items every hour and at
that time makes the decision of whether to shut down the line for readjustment. The
level of significance is a = .05.
a. State the hypothesis test for this quality control application.
b. If a sample mean of x = 16.32 ounces were found, what is the p-value? What action
would you recommend?
c. If a sample mean of x = 15.82 ounces were found, what is the p-value? What action
would you recommend?
d. Use the critical value approach. What is the rejection rule for the preceding
hypothesis testing procedure? Repeat parts (b) and (c). Do you reach the same
conclusion?
65. Scholarship Examination Scores. At Western University the historical mean of
scholarship examination scores for freshman applications is 900. A historical popula-
tion standard deviation o = 180 is assumed known. Each year, the assistant dean use
new
![Sample Size for a One-Tailed Hypothesis Test About a Population Mean
(Z₁ + Zg)³0²
(μo -μ)²
n =
P - Po
Po(1-Po)
n
In a two-tailed test, replace z with Za/2.
(9.4)
(9.7)
SUPPLEMENTARY EXERCISES
64. Production Line Fill Weights. A production line operates with a mean filling weight
of 16 ounces per container. Overfilling or underfilling presents a serious problem and
when detected requires the operator to shut down the production line to readjust the](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa0742cae-5e0c-42da-b2ef-62566b20cd9a%2Fb308e255-847f-4598-b6bf-e2409ded1ef4%2Fqm4izpt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Sample Size for a One-Tailed Hypothesis Test About a Population Mean
(Z₁ + Zg)³0²
(μo -μ)²
n =
P - Po
Po(1-Po)
n
In a two-tailed test, replace z with Za/2.
(9.4)
(9.7)
SUPPLEMENTARY EXERCISES
64. Production Line Fill Weights. A production line operates with a mean filling weight
of 16 ounces per container. Overfilling or underfilling presents a serious problem and
when detected requires the operator to shut down the production line to readjust the
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