14 Aug 1) An executive recruitment firm used a lengthy mail survey to gather informatio

1) An
executive recruitment firm used a lengthy mail survey to gather information on
the job mobility of mid-level managers. A sample of 500 eligible middle
managers was selected, using a sample random sample procedure. The firm used 3
waves of mailings. Sixteen of the questionnaires were returned due bad
addresses; all but two of the returned surveys were usable. After the third
mailing, each of the non-responding (NR) sample units was contacted by phone
and asked to answer only four questions regarding variables that the
recruitment firm thought were particularly important, given the objective of
the study. The table below gives mean values for these variables.

Years in Total Years of
Wave # of responses Age
Income Current Position Management Experience
1 125 30 $22,000 1.2 5.1
2 100 37 $27,000 4.0 9.4
3 75 42 $32,500 5.1 15.1
NR 200 50 $31,250 10.2 24.2

a) What is the response rate for the
completed questionnaire?
b) Which variables, if any, see, to be the most affected by potential
non-response bias? Does this tell you anything about the sample selection
procedure?

2) A
large furniture store located in a city of the southern western United States
was interested in determining how households living in and around the city
viewed the image of the store. Store managers hired a local market research
company to collect data. The researchers drew a systematic sample of 2,500
names from the local telephone directory and set out to conduct telephone
interviews. At the conclusion of the data phase of the project, the researchers
recorded 1,223 completed interviews, 508 not-at-homes, 427 refusals, and 252
nonworking telephone numbers. Calculate
the response rate of the project

3) Suppose
that the managers in the previous problem had decided prior to data collection
to only include households that planned to make a furniture purchase in the
next six months. A screening question was used to identify households that
qualified to complete the survey. Further the 2,500 elements drawn for the
sample were accounted as follows: 473 completed interviews, 612 not-at-homes,
431 refusals, 222 nonworking telephones, and 762 ineligibles.
a) What was the rate
of response in the project?
b) What would be the
response rate have been without adjusting for ineligible households?

4)
A- Establish response categories and codes for the question,
What do you like about this new brand of cereal?
B Code following responses using your categories and codes
1.
$1.50 is a reasonable price to pay for the
cereal
2.
The raisins and nuts add a nice flavor
3.
The sizes of packages are convenient
4.
I like the sugarcoating of the cereal
5.
The container does not tear and fall apart
easily
6.
My kids like the cartoons on the back of the
packet
7.
It is reasonable priced compared to other brands
8.
The packet is attractive and easy to spot on the
store
9.
I like the price; it is not so low that I doubt
the quality, and at the same time it is not so high to be unaffordable
10.
The crispiness and lightness of
the cereal improve the taste1) An
executive recruitment firm used a lengthy mail survey to gather information on
the job mobility of mid-level managers. A sample of 500 eligible middle
managers was selected, using a sample random sample procedure. The firm used 3
waves of mailings. Sixteen of the questionnaires were returned due bad
addresses; all but two of the returned surveys were usable. After the third
mailing, each of the non-responding (NR) sample units was contacted by phone
and asked to answer only four questions regarding variables that the
recruitment firm thought were particularly important, given the objective of
the study. The table below gives mean values for these variables.

Years in Total Years of
Wave # of responses Age
Income Current Position Management Experience
1 125 30 $22,000 1.2 5.1
2 100 37 $27,000 4.0 9.4
3 75 42 $32,500 5.1 15.1
NR 200 50 $31,250 10.2 24.2

a) What is the response rate for the
completed questionnaire?
b) Which variables, if any, see, to be the most affected by potential
non-response bias? Does this tell you anything about the sample selection
procedure?2) A
large furniture store located in a city of the southern western United States
was interested in determining how households living in and around the city
viewed the image of the store. Store managers hired a local market research
company to collect data. The researchers drew a systematic sample of 2,500
names from the local telephone directory and set out to conduct telephone
interviews. At the conclusion of the data phase of the project, the researchers
recorded 1,223 completed interviews, 508 not-at-homes, 427 refusals, and 252
nonworking telephone numbers. Calculate
the response rate of the project3) Suppose
that the managers in the previous problem had decided prior to data collection
to only include households that planned to make a furniture purchase in the
next six months. A screening question was used to identify households that
qualified to complete the survey. Further the 2,500 elements drawn for the
sample were accounted as follows: 473 completed interviews, 612 not-at-homes,
431 refusals, 222 nonworking telephones, and 762 ineligibles.a) What was the rate
of response in the project?b) What would be the
response rate have been without adjusting for ineligible households?4) A- Establish response categories and codes for the question,
What do you like about this new brand of cereal?B Code following responses using your categories and codes1.
$1.50 is a reasonable price to pay for the
cereal2.
The raisins and nuts add a nice flavor3.
The sizes of packages are convenient4.
I like the sugarcoating of the cereal5.
The container does not tear and fall apart
easily6.
My kids like the cartoons on the back of the
packet7.
It is reasonable priced compared to other brands8.
The packet is attractive and easy to spot on the
store9.
I like the price; it is not so low that I doubt
the quality, and at the same time it is not so high to be unaffordable10.
The crispiness and lightness of
the cereal improve the taste

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