Question

Nine experts rated two brands of coffee in a taste-testing experiment. A rating on a 7 point scale (1 = extremely unpleasing, 7 = extremely pleasing) is given for each of four characteristics: taste, aroma, richness, and acidity. The accompanying data table contains the ratings accumulated over all four characteristics. Complete parts (a) through (d) below.

EXPERT. BRAND A BRAND B

C.C. 23 24

S.E. 24 24

E.G. 19 21

B.I 21 23

C.M. 21 24

C.N 25 26

G.N 26 25

R.M. 21 22

P.V. 19 21

PART A

At the 0.01 level of significance, is there evidence of a difference in the mean ratings between the two brands?

let m1 be the mean rating for the brand A and m2 be the mean rating for brand b.

Determine the null and alternative hypotheses for this test.

What is the critical value? It is a two tailed test

What is the Tstat?

b.What assumption is necessary about the population distribution in order to perform this test?

Review the assumptions required for a paired t test for the mean difference.

C. Determine the p-value in (a) and interpret its meaning.

d.Construct a 90% confidence interval estimate of the difference in the mean ratings between the two brands.?

Construct a 95% confidence interval estimate of the difference in the mean ratings between the two brands.?

Answer #1

**Th ecalculation of excel**

Nine experts rated two bands of Brazilian coffee in a
taste-testing experiment. A rating on a 7-point scale (1 =
extremely unpleasing, 7 = extremely pleasing) is given for each of
four important characteristics. The mean of the sample difference
is -1.556 and the standard deviation of the sample difference is
1.424.
a. At the 5% significance level, is there evidence of a
difference in the mean ratings between the two brands?
b. What assumption is necessary about the population...

A consumer advocate researches the length of life between two
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(measured in years) on the longevity of 40 refrigerators for Brand
A and repeats the sampling for Brand B. These data are measured in
years. (You may find it useful to reference the appropriate
table: z table or t
table)
Brand A
Brand B
Brand A
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23
12
21
18
22
15
17
20
18
20
20...

A consumer advocate researches the length of life between two
brands of refrigerators, Brand A and Brand B. He collects data
(measured in years) on the longevity of 40 refrigerators for Brand
A and repeats the sampling for Brand B. These data are measured in
years. (You may find it useful to reference the appropriate
table: z table or t
table)
Brand A
Brand B
Brand A
Brand B
25
21
18
19
15
15
24
19
24
15
17...

Taste test for difference betwen fresh and frozen meat under
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Variables
1. Condition (1 = Cold Water, 2 = Milk, 3 = Beer, 4 = Soda, 5 =
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3. Frozen Meat taste Score (out of 150)*
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sample of 20 typical analysis problems were carried out using both
software on the firm’s standard personal computer. The time in
minutes needed to load the data, program the spreadsheet
calculations, carry out the analysis, and print the results was
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PUBH 6033—Week 7 Assignment 1
Comparing two means: When drink drove a student to
statistics
(Rubric included)
Instructions
For this assignment, you review this week’s Learning Resources
and then perform a two-sample independent t test and an ANOVA
related to the dataset that was utilized in the week 2 SPSS
application assignment. Import the data into SPSS; or, if you
correctly saved the data file in Week 2, you may open and use that
saved file to complete this...

PUBH 6033—Week 7 Assignment 1
Comparing two means: When drink drove a student to
statistics
(Rubric included)
Instructions
For this assignment, you review this week’s Learning Resources
and then perform a two-sample independent t test and an ANOVA
related to the dataset that was utilized in the week 2 SPSS
application assignment. Import the data into SPSS; or, if you
correctly saved the data file in Week 2, you may open and use that
saved file to complete this assignment....

1) What are some indicators that there are assignable
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I.Process capability.
II. Data patters outside of the control limits.
III. Data patters within the control limits.
IV. Points randomly falling above and below the control chart
center line.
a.
II and III
b.
II, III, IV
c.
I, II, IV
d.
I, II, III, IV
2) The best quantitative tool to determine the cause for
variation in a process is:
a.
ANOVA
b.
Correllation...

What are your top 3 take aways from this
article?
Technology is no longer just for geeks. The internet has changed
everything, including marketing.
Be they small, medium or large, social media grants all
companies an equal playing field on which to organically reach new
customers. However, success will always ride on the marketing
strategy employed.
Obviously, larger companies have the advantage of bigger budgets
and more resources. But that doesn’t mean social media for small
business owners can’t compete...

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