Question
In: Statistics and Probability
A company wants to determine if the median shelf life for their product is different from...
A company wants to determine if the median shelf life for their product is different from the median shelf life of their main competitor’s product. Their main competitor’s product has a median shelf life of 10 days. Since the product is very expensive, the company only wants to devote a small number of units to the associated test. They test 7 units of product and find the following results.
|
Unit |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
|
Shelf Life (days) |
8 |
9 |
8 |
11 |
13 |
12 |
14 |
a) What type of hypothesis test should you conduct in this case?
b) Conduct your chosen hypothesis test using the p-value method. Show all 5 steps. When you calculate your test statistic: show the equation you use, how you plug in, and your final answer. When you calculate your p-value: show how you calculate each individual probability, and round each individual probability to 4 decimal places.
Solutions
orchestra answered 2 years agoRelated Solutions
2. [12 marks] A company wants to determine if the median shelf life for their product...
2. [12 marks] A company wants to determine if the median shelf
life for their product is different from the median shelf life of
their main competitor’s product. Their main competitor’s product
has a median shelf life of 10 days. Since the product is very
expensive, the company only wants to devote a small number of units
to the associated test. They test 7 units of product and find the
following results.
Unit
1
2
3
4
5
6
7...
different between shelf half life and half life
different between shelf half life and half life
A company that produces carbonated beverage has to check the shelf life of their product periodically...
A company that produces carbonated beverage has to check the
shelf life of their product periodically for quality control. They
collected a random sample of 10 bottles and measured their shelf
life in days, and obtained the following results:
108, 124, 124, 106, 115, 138, 163, 159, 134, 139
They would like to demonstrate that the mean shelf life of their
product exceeds 120 days.
Set up the appropriate hypotheses. Use mathematical notation,
and explain the symbols that you are...
A manufacturer wants to increase the shelf life of a line of cake mixes. Past records...
A manufacturer wants to increase the shelf life of a line of
cake mixes. Past records indicate that the average shelf life of
the mix is 216 days. After a revised mix has been developed, a
sample of nine boxes of cake mix gave these shelf lives (in days):
215, 217, 218, 219, 216, 217, 217, 218, and 218. Using α = 0.025,
has the shelf life of the cake mix increased?
Select one:
a.
Yes, because computed p is...
The shelf life of a battery produced by one major company is known to be normally...
The shelf life of a battery produced by one major company is
known to be normally distributed, with a mean life of 3.2 years and
a standard deviation of 0.5 years. Using the expanded empirical
rule, what is the probability in decimal form that a randomly
chosen battery will
(a) last fewer than 3.535 years?
Answer:
(b) last between 2.7 and 3.7 years?
Answer:
(c) last more than 1.7 years?
Answer:
(a) Describe shelf-life determination by direct method. (b) Describe shelf-life calculation by indirect method of accelerated...
(a) Describe shelf-life determination by direct
method.
(b) Describe shelf-life calculation by indirect method
of accelerated tests
(c) Mention seven measures to be considered for
shelf-life determination.
A university wants to determine if students from different majors are equally likely to be cited...
A university wants to determine if students from different
majors are equally likely to be cited for academic dishonesty. They
average instances of documented cheating across 10 years for three
different academic majors and find the following results: Business
Administration (M = 5.1; N = 10), Fine Art
(M = 1.9; N = 10), and Nursing (M = 3.2;
N = 10). They also calculated the between-group and
within-group sum of squares (SSB = 301.6; SSW
=1343.8). Use a one-way...
. What do you surmise a shelf life to be?
. What do you surmise a shelf life to
be?
A company wants to determine whether its consumer product ratings (0minus−10) have changed from last year...
A company wants to determine whether its consumer product
ratings
(0minus−10)
have changed from last year to this year. The table below shows
the company's product ratings from eight consumers for last year
and this year. At
alphaαequals=0.05,
is there enough evidence to conclude that the ratings have
changed? Assume the samples are random and dependent, and the
population is normally distributed. Complete parts (a) through
(f).
Consumer
1
2
3
4
5
6
7
8
Rating left parenthesis last...
A company wants to determine whether its consumer product ratings (0minus−10) have changed from last year...
A company wants to determine whether its consumer product
ratings
(0minus−10)
have changed from last year to this year. The table below shows
the company's product ratings from eight consumers for last year
and this year. At
alphaαequals=0.05,
is there enough evidence to conclude that the ratings have
changed? Assume the samples are random and dependent, and the
population is normally distributed. Complete parts (a) through
(f).
Consumer
1
2
3
4
5
6
7
8
Rating left parenthesis last...
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