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3 years ago

15

The main printer in the Ivy Tech library can produce an average of 211 copies every hour. For every 25 pages, it costs the colle

ge $0.47 for electricity and supplies. If the library is open from 9AM to 9PM, how much money does the college use on printing each day?

1 answer:

lidiya [134]3 years ago

3 0

Answer:

~48$

Step-by-step explanation:

0.47/25=0.0188

0.0188×211=3.9

12 cause of 9am to pm

12×3.9=47$

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The complete question is shown on the first uploaded image

Answer:

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From the question we are told that

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The null hypothesis is $H_o : \mu = 0.5025$

The alternative hypothesis is $H_a : \mu \ne 0.5025$

The test statistics is mathematically represented as

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The critical value of

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=> $0.5046 - 3.92 *10^{-5} < \mu < 0.5046 + 3.92 *10^{-5}$

=> $0.5045608 < \mu < 0.5046392$

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