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Daniel [21]
3 years ago
14

In the past, 25% of the town residents participated in the school board elections. The town officials recently undertook an exte

nsive campaign to encourage registered voters to participate in the election process. They are interested in determining whether the promotional campaign actually increased the proportion of voters.
The correct set of hypotheses is:

2. What does the value p0 represent in tests about the population proportion?
Mathematics
1 answer:
Wewaii [24]3 years ago
7 0

Answer:

1.H_{0}:at most 25% of the town residents participate in the school board election

H_{a}:more than 25% of the town residents participate in the school board election

2.p_{0} = 0.25

Step-by-step explanation:

p_{0} is choosen as the highest possible proportion probability according to the null hypothesis, which is 25%

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I Hope I've helped you.

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3 years ago
There are 850 Douglas fir and Ponderosa pine trees in a section of forest bought by Karamazov Logging Co. The company paid an av
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Answer:

350 Douglas fir, 500 Ponderosa pine

Step-by-step explanation:

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and p = the number of pine trees.

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(1)                                f + p = 850

(2)                  300f + 225p = 217 500

(3)                                    p = 850 -f         Subtracted f from each side of (1)

(4)       300f + 225(850 - f) = 217 500     Substituted (3) into (3)

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The company bought 350 fir trees and 500 pine trees.

Check:

(1) 350 + 500 = 850     (2) 300 × 350 + 225 × 500 = 217 500  

              850 = 850                  105 000 + 112 500 = 217 500

                                                                   217 500 = 217 500

OK.

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