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Mathematics, 25.08.2020 08:01 Mintfu2580
Suds-a-Lot conducted a study that showed 97% customer satisfaction, with a
standard deviation of 1%. The sample included 25 people who appeared in
one of their commercials, during the past 5 years.
Feel Fresh conducted a study that showed 90% customer satisfaction, with a
standard deviation of 4%. The random sample consisted of 100 people, who
had recently purchased one of their products.
Which of the company claims is more believable and why?
A. Feel Fresh because the standard deviation is larger.
B. Feel Fresh because the sample was not biased.
C. Suds-a-Lot because the standard deviation is smaller.
D. Suds-a-Lot because the time span was longer.
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Suds-a-Lot conducted a study that showed 97% customer satisfaction, with a
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