Question
In: Statistics and Probability
Q2. A company wishes to survey how the customer satisfaction rate for auto-insurance companies in a...
Q2. A company wishes to survey how the customer satisfaction
rate for auto-insurance
companies in a state has changed over the years. In 2018, the
company randomly selected
200 car-owners from that state and 162 of them mentioned that they
are satisfied with
their auto-insurance providers. In 2019, the company randomly
selected 188 car-owners
from that state and 145 of them mentioned satisfaction with
auto-insurance. Based on this
data, answer the following questions. [4+3 = 7 points]
(a) Suppose, the company wants to test the claim that the customer
satisfaction rate was
different in these two years. Write the ToH in the context of the
problem and, using the CR
method, conclude at 5% level.
(b) Suppose, the company wants to test the claim that the customer
satisfaction rate has
reduced in 2019 relative to 2018, in that state. Write the ToH in
the context of the problem
and, using the p-value method, conclude at 5% level.
Solutions
orchestra answered 2 years agoRelated Solutions
You are analyzing a customer satisfaction survey for clients in which (Overall) Satisfaction, Price Satisfaction and...
You are analyzing a customer satisfaction survey for clients in
which (Overall) Satisfaction, Price Satisfaction and Reliability
Satisfaction (and several other attributes) are measured on a 1-10
scale, 10 being the most favorable value for each variable. You fit
a regression model of the form
Satisfaction=
α+β1Price+β2Reliability+ε
and find that in this model the
estimated coefficient of Price is positive, but that of
Reliability, is negative. You give a preliminary talk for
your business clients, in which they declare this...
You have received a business research report done by a consultant for your firm, a life insurance company. The study is a survey of customer satisfaction based on a sample of 600.
You have received a business research report done by a
consultant for your firm, a life insurance company. The study is a
survey of customer satisfaction based on a sample of 600.You are asked to comment on its quality. What will you look
for?
A magazine uses a survey of readers to obtain customer satisfaction ratings for the nation's largest...
A magazine uses a survey of readers to obtain customer
satisfaction ratings for the nation's largest retailers. Each
survey respondent is asked to rate a specified retailer in terms of
six factors: quality of products, selection, value, checkout
efficiency, service, and store layout. An overall satisfaction
score summarizes the rating for each respondent with 100 meaning
the respondent is completely satisfied in terms of all six factors.
Sample data representative of independent samples of Retailer A and
Retailer B customers...
A magazine uses a survey of readers to obtain customer satisfaction ratings for the nation's largest...
A magazine uses a survey of readers to obtain customer
satisfaction ratings for the nation's largest retailers. Each
survey respondent is asked to rate a specified retailer in terms of
six factors: quality of products, selection, value, checkout
efficiency, service, and store layout. An overall satisfaction
score summarizes the rating for each respondent with 100 meaning
the respondent is completely satisfied in terms of all six factors.
Sample data representative of independent samples of Retailer A and
Retailer B customers...
A magazine uses a survey of readers to obtain customer satisfaction ratings for the nation's largest...
A magazine uses a survey of readers to obtain customer
satisfaction ratings for the nation's largest retailers. Each
survey respondent is asked to rate a specified retailer in terms of
six factors: quality of products, selection, value, checkout
efficiency, service, and store layout. An overall satisfaction
score summarizes the rating for each respondent with 100 meaning
the respondent is completely satisfied in terms of all six factors.
Sample data representative of independent samples of Retailer A and
Retailer B customers...
A magazine uses a survey of readers to obtain customer satisfaction ratings for the nation's largest...
A magazine uses a survey of readers to obtain customer
satisfaction ratings for the nation's largest retailers. Each
survey respondent is asked to rate a specified retailer in terms of
six factors: quality of products, selection, value, checkout
efficiency, service, and store layout. An overall satisfaction
score summarizes the rating for each respondent with 100 meaning
the respondent is completely satisfied in terms of all six factors.
Sample data representative of independent samples of Retailer A and
Retailer B customers...
A magazine uses a survey of readers to obtain customer satisfaction ratings for the nation's largest...
A magazine uses a survey of readers to obtain customer
satisfaction ratings for the nation's largest retailers. Each
survey respondent is asked to rate a specified retailer in terms of
six factors: quality of products, selection, value, checkout
efficiency, service, and store layout. An overall satisfaction
score summarizes the rating for each respondent with 100 meaning
the respondent is completely satisfied in terms of all six factors.
Sample data representative of independent samples of Retailer A and
Retailer B customers...
Retrenched Auto Body management wonders if the satisfaction rate (in %) of their customers depends on...
Retrenched Auto Body management wonders if the satisfaction rate
(in %) of their customers depends on the length of time it takes to
repair the automobile (in weeks). They arbitrarily keep one car for
one week, another car for two weeks, another for three, and still
another for four weeks, and then have the cars’ owners report their
percentage level of satisfaction. Ignoring history or other test
effects, determine the following:
Customer
Repair time (weeks)
Satisfaction (%)
Repair-time squared
Satisfaction...
A consumer product testing organization uses a survey of readers to obtain customer satisfaction ratings for...
A consumer product testing organization uses a survey of readers
to obtain customer satisfaction ratings for the nation's largest
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supermarket based on a variety of factors such as: quality of
products, selection, value, checkout efficiency, service, and store
layout. An overall satisfaction score summarizes the rating for
each respondent with 100 meaning the respondent is completely
satisfied in terms of all factors. Suppose sample data
representative of independent samples of...
A consumer product testing organization uses a survey of readers to obtain customer satisfaction ratings for...
A consumer product testing organization uses a survey of readers
to obtain customer satisfaction ratings for the nation's largest
supermarkets. Each survey respondent is asked to rate a specified
supermarket based on a variety of factors such as: quality of
products, selection, value, checkout efficiency, service, and store
layout. An overall satisfaction score summarizes the rating for
each respondent with 100 meaning the respondent is completely
satisfied in terms of all factors. Suppose sample data
representative of independent samples of...
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