# SEU Statistics State Hypothesis Worksheet

Section 9.2(Problem 8) State hypothesis H0,H1 and draw conclusion

Section 9.3(Problem 1,9)

Don't use plagiarized sources. Get Your Custom Essay on
SEU Statistics State Hypothesis Worksheet
Just from \$13/Page

Section 9.4(Problem 1 only a and b)

Section 9.5(Problem 1 part a)

Problem 8 on ch.9 supplement exercises

Reserve Problem Chapter 9 Section 2 Problem 8

Humans are known to have a mean gestation period of 280 days

(from last menstruation) with a standard deviation of about 9 days.

A hospital wondered whether there was any evidence that their

patients were at risk for giving birth prematurely. In a random

sample of 70 women, the average gestation time was 274.7 days.

a. Is the alternative hypothesis one- or two-sided?

b. What is the P-value of the test statistic?

Reserve Problem Chapter 9 Section 3 Problem 1

We have 5-year statistics of the average amount of wheat crop

(tons) harvested from 1 km2 per year, the results are as follows:

560, 525, 496, 543, 499. Test the hypothesis that the mean wheat

crop is 550 tons per 1 km2 per year (? = 0.05) and choose the correct

answer. Determine a 95% confidence interval on the mean

wheat crop. Determine whether the hypothesis that the mean

wheat crop is 550 tons per 1 km2 per year (? = 0.05) is true based

on the 95% confidence interval?

Reserve Problem Chapter 9 Section 3 Problem 9

Human oral normal body temperature is believed to be 98.6? F,

but there is evidence that it actually should be 98.2? F

[Mackowiak, Wasserman, Steven and Levine, JAMA (1992, Vol. 268(12), pp. 1578–1580)].

From a sample of 52 healthy

adults, the mean oral temperature was 98.285 with a standard

deviation of 0.625 degrees.

a. What are the null and alternative hypotheses?

b. Test the null hypothesis at ? = 0.05. Find t0. Is it possible to

reject H0 hypothesis at the 0.05 level of significance?

c. Construct a 95% confidence interval to answer the same

question.

Reserve Problem Chapter 9 Section 4 Problem 1

A group of 15 students has performed an experiment, they measured

the coefficient of thermal expansion for aluminum. The

results are as follows (10?6 K?1):22.0, 25.9, 25.6, 23.1, 22.7, 25.6,

24.9, 21.9, 26.1, 24.3, 23.5, 20.7, 21.4, 23.5, 20.4.

a. Is there strong evidence to conclude that the standard deviation

in this experiment exceeds 3? Use ? = 0.05.

b. Find the P-value for this test.

Reserve Problem Chapter 9 Section 5 Problem 1

A manufacturer of soap bubble liquid will test a new solution

formula. The solution will be approved, if the percent of produced

parisons, in which the content does not allow the bubbles

to inflate, does not exceed 7%. A random sample of 700 parisons

contains 50 defective parisons. Use the z-values rounded to three

decimal places to obtain the answers.

a. Formulate and test an appropriate set of hypotheses to determine

whether the solution can be approved. Use ? = 0.05.

Find the P-value.

Reserve Supplemental Exercises Chapter 9 Problem 8

A communication channel is being monitored by recording the

number of errors in a string of 1000 bits. Data for 20 of these

strings follow:

3 1 0 1 3 2 4 1 3 1

1 1 2 3 3 2 0 2 0 1

Consider the 20 observations collected on the number of errors in

a string of 1000 bits of a communication channel.

a. Based on the description of the random variable and these

20 observations, is a binomial distribution an appropriate

model? Perform a goodness-of-fit procedure with ? = 0.05.

Let the expected frequencies be at least three.

b. Calculate the P-value for this test.

Section 9.2(Problem 8) State hypothesis H0,H1 and draw conclusion
Section 9.3(Problem 1,9)
Section 9.4(Problem 1 only a and b)
Section 9.5(Problem 1 part a)
Problem 8 on ch.9 supplement exercises
Reserve Problem Chapter 9 Section 2 Problem 8
Humans are known to have a mean gestation period of 280 days
(from last menstruation) with a standard deviation of about 9 days.
A hospital wondered whether there was any evidence that their
patients were at risk for giving birth prematurely. In a random
sample of 70 women, the average gestation time was 274.7 days.
a. Is the alternative hypothesis one- or two-sided?
b. What is the P-value of the test statistic?
Reserve Problem Chapter 9 Section 3 Problem 1
We have 5-year statistics of the average amount of wheat crop
(tons) harvested from 1 km2 per year, the results are as follows:
560, 525, 496, 543, 499. Test the hypothesis that the mean wheat
crop is 550 tons per 1 km2 per year (α = 0.05) and choose the correct
answer. Determine a 95% confidence interval on the mean
wheat crop. Determine whether the hypothesis that the mean
wheat crop is 550 tons per 1 km2 per year (α = 0.05) is true based
on the 95% confidence interval?
Reserve Problem Chapter 9 Section 3 Problem 9
Human oral normal body temperature is believed to be 98.6∘ F,
but there is evidence that it actually should be 98.2∘ F
[Mackowiak, Wasserman, Steven and Levine, JAMA (1992, Vol. 268(12), pp. 1578–1580)].
From a sample of 52 healthy
adults, the mean oral temperature was 98.285 with a standard
deviation of 0.625 degrees.
a. What are the null and alternative hypotheses?
b. Test the null hypothesis at α = 0.05. Find t0. Is it possible to
reject H0 hypothesis at the 0.05 level of significance?
c. Construct a 95% confidence interval to answer the same
question.
Reserve Problem Chapter 9 Section 4 Problem 1
A group of 15 students has performed an experiment, they measured
the coefficient of thermal expansion for aluminum. The
results are as follows (10−6 K−1):22.0, 25.9, 25.6, 23.1, 22.7, 25.6,
24.9, 21.9, 26.1, 24.3, 23.5, 20.7, 21.4, 23.5, 20.4.
a. Is there strong evidence to conclude that the standard deviation
in this experiment exceeds 3? Use α = 0.05.
b. Find the P-value for this test.
Reserve Problem Chapter 9 Section 5 Problem 1
A manufacturer of soap bubble liquid will test a new solution
formula. The solution will be approved, if the percent of produced
parisons, in which the content does not allow the bubbles
to inflate, does not exceed 7%. A random sample of 700 parisons
contains 50 defective parisons. Use the z-values rounded to three
decimal places to obtain the answers.
a. Formulate and test an appropriate set of hypotheses to determine
whether the solution can be approved. Use α = 0.05.
Find the P-value.
Reserve Supplemental Exercises Chapter 9 Problem 8
A communication channel is being monitored by recording the
number of errors in a string of 1000 bits. Data for 20 of these
strings follow:
3101324131
1123320201
Consider the 20 observations collected on the number of errors in
a string of 1000 bits of a communication channel.
a. Based on the description of the random variable and these
20 observations, is a binomial distribution an appropriate
model? Perform a goodness-of-fit procedure with α = 0.05.
Let the expected frequencies be at least three.
b. Calculate the P-value for this test.
Trim Size: 8in x 10in STD-H8x10
Montgomery7e
k
bend_RP.tex
V1 – 11/08/2017
8:50pm Page R-1
Reserve Problems
The following problems have been reserved for your use in assignments and testing and do not
appear in student versions of the text. Those marked with a WileyPLUS icon have been authored
for assignment and automatic grading in WileyPLUS.
WP Problem available in WileyPLUS at instructor’s discretion.
Chapter 2 Exercises
Exercises for Section 2.1
k
. WP Reserve Problem Chapter 2 Section 1 Problem 1
Determine the sample space for the following random experiment. It is known that the delivery time is within 10 to 46 hours.
Consider an experiment that records the time from an order until
the shipment arrives.
. WP Reserve Problem Chapter 2 Section 1 Problem 2
Consider an experiment that records the number of bushels (and
fractions of bushels) of corn produced in an acre. The yield is
assumed to be between 130 and 230 bushels. Determine the corresponding sample space.
. WP Reserve Problem Chapter 2 Section 1 Problem 3
Consider an experiment that records the error (diﬀerence)
between the actual and estimated quarterly revenue of a corporation. Determine the corresponding sample space.
. WP Reserve Problem Chapter 2 Section 1 Problem 4
A conceptual smartphone design uses a parachute technique to
avoid severe damage to the screen and phone-case. Each of four
nozzles located on the case might be either functional or defective
after a year.
a. Describe the sample space in terms of the condition (functional or defective) of each nozzle after a year. Let “F”
denote a functional nozzle after a year and “D” denote a
defective one.
b. How many outcomes are in the event deﬁned by two defective nozzles?
. WP Reserve Problem Chapter 2 Section 1 Problem 5
Let X denote the grams of gold obtained in a ton of ore. Consider
b. P(X > x) = 0.95
c. P(x < X < 9) = 0.2 d. P(3 < X < x) = 0.95 e. P(−x < X − 7 < x) = 0.99 . WP...

Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

## Calculate the price of your order

Total price:
\$0.00

How it works?

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

## Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.