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mr_godi [17]
4 years ago
13

From a poll of people who recently bought cold medicine at all stores of a large drugstore​ chain, investigators concluded that

the mean time between colds for all americans is 5.6 months.
Business
1 answer:
gavmur [86]4 years ago
6 0

Options:

(A) participation bias

(B) Both selection and participation bias

(C) Selection bias only

(D) There is probably no source of bias in the study.

Answer:(C) Selection bias only

Explanation: Selection bias is a bias introduced during the selection process of a sample in such a way that the samples population does have or is not a proper representation of the entire population.

This type of bias is also known as SELECTION EFFECT.

Selection bias can also be described as the distortion of Statistical analysis due to the inappropriate sample collection process, if selection of sample is not adequately done,the conclusion or outcome of the study will be false.

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7 0
4 years ago
A Super Happy Fun Ball is dropped from a height of 10 feet and rebounds 13/14 of the distance from which it fell. How many times
Phantasy [73]

Answer:

32

Explanation:

First bounce = 13 / 14 × 10 = 130 /14

using geometric progression where the common ratio = 13/14, the first bound = 130/14

ar^n-1 < 1

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130 /14 × 13/14^(n-1) < 1

(13/14)^n-1 < 1÷ (130/14)

(13/14)^n-1 < 14 / 130

take log of both side

log (13 /14)^n-1 < log ( 14/130)

n-1 log (13 /14) < log  ( 14/130)

since log (13/14) negative

n-1 > (log( 14/130)) ÷ ( log (13/14)

n - 1 > 30.07

n > 30.07 + 1 > 31.07

The 32 bounce will the first less than 1 foot

3 0
3 years ago
_____ money is what's available after paying for the necessities of life
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Who are the internal and X ternal users of accounting information
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Answer and Explanation:

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