Cashback Offer (1st - 15th August, 2020). Get Flat 10% Cashback credited in your account on minimum transaction of $50. Post Your Question

Question DetailsNormal
$ 28.00

MINITAB Assignment 4 Fall 2015 | Complete Solution

Question posted by
request

MINITAB Assignment 4 Fall 2015
            
Make sure you so the following:
1.    Have your name on the document in the left hand corner
2.    Put STAT100 under your name
3.    Put MINITAB Assignment 4 centered on the page
4.    Number and letter the answers accordingly
5.    Copy and paste all generated graphics into your paper.
6.    Use complete and coherent sentences to answer the questions.
7.    Upload your MINITAB assignment on ELMS before the due date and time otherwise it is considered late.  Please use your name_MINITAB_4 as the file name.  For example: schimiak_MINITAB_4 or suechimiak_MINITAB_2 (make sure you save your document on your computer or email it to yourself)

1.    The heights were recorded for a Simple Random Sample of 270 freshmen.  The mean of this sample was 66.5 inches.  The heights are known to be Normally Distributed with a population standard deviation of 5.1 inches. Round answers to one decimal place. (You do not need a data set for this problem.)
a.    From the simple random sample of 270 freshmen heights:
i.    Calculate the 96% Confidence Interval for the population mean height of a freshman.  Interpret the confidence interval.  Use MINITAB to compute the confidence interval.  (Copy and paste the MINITAB output found in the Session window after your answer.)
ii.    Calculate the 87% Confidence Interval for the population mean height of a freshman.  Interpret the confidence interval.  Use MINITAB to compute the confidence interval.  (Copy and paste the MINITAB output found in the Session window after your answer.)
iii.    As you increase the level of confidence, how will this affect the precision (i.e., the width) of the interval?  (Note:  The smaller the interval, the more precise it is.)
iv.    What sample size would you need for a 95% Confidence Interval to have margin of error of no more than 0.45?

b.    At a 0.05 significance level, test the claim that the average height of a freshman differs from the 1956 average freshman height of 65.7 inches.  
i.    State the null and alternative hypotheses.
ii.    State the significance level for this problem.
iii.    State the test statistic.  Use MINITAB to compute the test statistic and P-value.  (Copy and paste the MINITAB output found in the Session window after your answer.  Use this result to answer part (iv)).
iv.    State the P-value.
v.    State whether you reject or do not reject the null hypothesis.
vi.    State your conclusion in context of the problem.
vii.    If the true mean was 65.7 inches, did you make an error?  If so, which error? (Answer in complete sentences.  You need to explain why or why not you made an error as well as identifying the type of error (Type I or II) if you did make an error. DO NOT answer these questions with a simple "Yes" or "No"; if you do, it will be marked as incorrect.)


2.    Sulfur compounds cause “off-odors” in wine, so winemakers want to know the odor threshold, the lowest concentration of a compound that the human nose can detect. The odor threshold for dimethyl sulfide (DMS) in trained wine tasters is about 25 micrograms per liter of wine (µg/l). The untrained noses of consumers may be less sensitive, however. Here are the DMS odor thresholds for 10 untrained students:
31   31   43   36   23   34   32   30   20   24
Assume that the odor threshold for untrained noses is Normally distributed with a population standard deviation of 6.7 g/l.
Type the above data in column 1 in MINITAB worksheet and answer the following questions. Round answers to one decimal place.
a.    Calculate the 94% confidence interval for the mean DMS odor threshold among all untrained students. Interpret the confidence interval.  (Copy and paste the MINITAB output found in the Session window after your answer.)
b.    How large a sample is needed so that the margin of error is within  1.6 µg/l for a 95% confidence level?
c.    At a 0.05 significance level, test the claim that the mean threshold for untrained tasters is greater than 25.1µg/l.
i.    State the null and alternative hypotheses.
ii.    State the significance level for this problem.
iii.    State the test statistic.  Use MINITAB to compute the test statistic and P-value.  (Copy and paste the MINITAB output found in the Session window after your answer.  Also, use this result to answer part (iv)).
iv.    State the P-value.
v.    State whether you reject or do not reject the null hypothesis.
vi.    State your conclusion in context of the problem.
vii.    If the true mean was 30.8 µg/l, did you make an error?  If so, which error? (Remember to answer in complete sentences.  You need to explain why or why not you made an error as well as identifying the type of error (Type I or II) if you did make an error. DO NOT answer these questions with a simple "Yes" or "No"; if you do, it will be marked as incorrect.)

Available Answer
$ 28.00

[Solved] MINITAB Assignment 4 Fall 2015 | Complete Solution

  • This solution has been not purchased yet.
  • Submitted On 31 Oct, 2015 04:42:54
Answer posted by
solution
iii. As you increase the level of confidence, how will this affect the precision (i.e., the width) of the i...
Buy now to view full solution.
Other Similar Questions
User Profile
austi...

PSY 2061 Week 6 Assignment 2 Minitab and Variability | Complete Solution

Minitab is a very useful tool especially when it comes to data analysis. There are so many different.......
User Profile
AceTu...

Math 2209 Distance Minitab Assignment: Ch 25 One-Way ANOVA | Complete Solution

The ANOVA output and graph appears in the output window. Print out the output using File – Print. 3.In the Minitab spreadsheet, go to Column C4 and row 1. This means you’ll be right beside the 53 which is the first value ...
User Profile
AceTu...

Math 2209 Minitab Assignment on Chapter 24 | Complete Solution

Perform the regression of SELL on LIST and plot the residuals: Stat > Regression > Regression > Fit Regression Model…, Choose SELL as the response, LIST as the Continuous Predictor. Choose Graphs .. and select Four in...
User Profile
Exper...

MINITAB Assignment 4 Fall 2015 | Complete Solution

Iii. As you increase the level of confidence, how will this affect the precision (i.e., the width) of the interval? (Note: The smaller the interval, the more precise it is.) As the level of confidence increases, the confid...
User Profile
NUMBE...

MINITAB Assignment 4 Fall 2015 100% Satisfaction Guarantees!

MINITAB Assignment 4 Fall 2015 Make sure you so the following: 1. Have your name on the document in the left hand corner 2. Put STAT100 under your name 3. Put MINITAB Assignment 4 centered on the page 4. Number and letter the...

The benefits of buying study notes from CourseMerit

homeworkhelptime
Assurance Of Timely Delivery
We value your patience, and to ensure you always receive your homework help within the promised time, our dedicated team of tutors begins their work as soon as the request arrives.
tutoring
Best Price In The Market
All the services that are available on our page cost only a nominal amount of money. In fact, the prices are lower than the industry standards. You can always expect value for money from us.
tutorsupport
Uninterrupted 24/7 Support
Our customer support wing remains online 24x7 to provide you seamless assistance. Also, when you post a query or a request here, you can expect an immediate response from our side.
closebutton

$ 629.35