The brand manager for a brand of toothpaste must plan a campaign designated to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 95% confident that his estimate is within seven percentage points of the true population percentage? Complete parts (a) through (c).
a) Assume that nothing is known about the percentage of adults who have heard of the brand.
n=
b) Assume that a recent survey suggest that about 76% of adults have heard of the brand.
n=
c) Given that the required sample size is relatively small, could he simply survey the adults at the nearest college?
A. No, a sample of students at the nearest college is a stratified sample, not a simple random sample, so it is very possible that the results would not be representative of the population of adults.
B. Yes, a sample of students at the nearest college is a simple random sample, so the results should be representative of the population of adults.
C. No, a sample of students at the nearest colleges is a cluster sample, not a simple random sample, so it is very possible that the results would not be representative of the population of adults.
D. No, a sample of students at the nearest college is a convenience sample, not a simple random sample, so it is very possible that the results would not be representative of the population of adults
The brand manager for a brand of toothpaste must plan a campaign designated to increase brand...
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 95% confident that his estimate is within seven percentage points of the true population percentage? Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of adults who have heard of the brand....
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 80% confident that his estimate is within five percentage points of the true population percentage? Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of adults who have heard of the brand....
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 80% confident that his estimate is within five percentage points of the true population percentago? Complete parts (a) through (c) below a) Assume that nothing is known about the percentage of adults who have heard of the brand...
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first date the percentage of adults who have heard of the brand Howitany adults must be survey orto e o confident that is estimate is within percentage points of the tre population percentage? Complete parts (a) through e below. a) Asume that nothing is known about the percentage of adults who have heard of the brand, (Round up to the...
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage? B) Assume that a recent survey suggests that about 79% of adults have heard of the brand. N = ?
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 90% confident that his estimate is within eight percentage points of the true population percentage? Complete parts (a) through (c) below. b) Assume that a recent survey suggests that about 84% of adults have heard of the brand.
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 95% confident that his estimate is within six percentage points of the true population percentage? Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of adults who have heard of the brand....
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 90% confident that his estimate is within eight percentage points of the true population percentage? Complete parts (a) through (c) below.
PLEASE I NEED HELP ASAP The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to fra determine the percentage of adults who have heard of the brand. How many duts must he survey in order to be so confident that is estimate is within five percentage points of the true population percentage? Complete parts tough below Assume that nothing is known about the percentage of adults who have heard of...
can i get help answering these questions please i do not understand how to solve them im having trouble please. Question Hop The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 90% confident that his estimate is within seven percentage points of the true population percentage? Complete...