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jenyasd209 [6]
2 years ago
7

Brianna earned $240.00 for 20 hours of work. How much was earned per hour?

Mathematics
2 answers:
nalin [4]2 years ago
6 0
$12 were earned per hour
Paha777 [63]2 years ago
6 0

Answer:

$12 an hour

Step-by-step explanation:

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A simple random sample of size n=250 individuals who are currently employed is asked if they work at home at least once per week
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Answer:

solution is given below

Step-by-step explanation:

A simple random sample size n = 250 . Of the 250 employed individuals ​surveyed,42 responded that they did work at home at least once per week.

Construct 99% confidence interval for population

For proportion : 42 / 250 = 1/10 = 0.16

Mean = 2.5 * sqrt [ 0.1 * 0.9  / 250]

     = 2.5 * 0.01

    = 0.47

Construction of hypothesis:

0.10 - 0.047 < p < 0.10 + 0.047

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