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Andrej [43]
3 years ago
10

Suppose in a representative sample of adult Americans ages 26 to 32 years, 27% indicated that they owned a fitness band that kep

t track of the number of steps walked each day and their daily activity levels. Suppose that the sample size was 500. Is there convincing evidence that more than one-quarter of all adult Americans in this age group own a fitness band
Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0

Answer: Yes, we have.

Step-by-step explanation:

Going by the details provided, Probability of success of choosing a citizen with a fitness band 27%

The probability function for expected value shows the Formula to know with sufficient dependence what proportion of the sampled people will have the fitness band.

Since 27% of 500 = 135.

and 135 is more than a quarter of 500(125), then we have enough Evidence that more than a quarter of this age group own a fitness band.

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