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Delvig [45]
4 years ago
10

a new play premieres on saturday, october 1, and 420 people attend. attendance then decreases by 30% each day. find the attendan

ce on tuesday , october 4
Mathematics
1 answer:
wolverine [178]4 years ago
3 0

Answer:

The attendance on tuesday, october 4, is of 144 people.

Step-by-step explanation:

The attendance after t days is given by the following equation:

A(t) = A(0)(1-r)^{t}

In which A(0) is the attendance on the first day and r is the daily decrease rate.

Premieres on saturday, october 1, and 420 people attend.

This means that A(0) = 420

Attendance then decreases by 30% each day.

This means that r = 0.3

So

A(t) = A(0)(1-r)^{t}

A(t) = 420(1-0.3)^{t}

A(t) = 420(0.7)^{t}

Find the attendance on tuesday , october 4

This is 4-1 = 3 days after saturday. So this is A(3).

A(3) = 420(0.7)^{3} = 144

The attendance on tuesday, october 4, is of 144 people.

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Step-by-step explanation:

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Now, Type I error states that we conclude that the null hypothesis is rejected when in fact the null hypothesis was actually true. Or in other words, it is the probability of rejecting a true hypothesis.

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Type II error states that we conclude that the null hypothesis is accepted when in fact the null hypothesis was actually false. Or in other words, it is the probability of accepting a false hypothesis.

So, in our question; Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.

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