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nirvana33 [79]
3 years ago
12

Research question: Do the majority of U.S. adults oppose the death penalty?

Mathematics
1 answer:
Ivahew [28]3 years ago
8 0

Answer:

The P-value that will support this conclusion is 0.03.

Step-by-step explanation:

We are given the following hypothesis below;

Null Hypothesis, H_0 : p = 50%    {means that 50% of U.S. adults oppose the death penalty}

Alternate Hypothesis, H_A : p > 50%     {means that majority (more than 50% of adults) oppose the death penalty}

Now, a survey was conducted in which a random sample of 1,100 U.S. adults are asked about their opinions on the death penalty, and based on the data, the researchers state, "at the 5% significance level, this survey provides strong evidence that the majority of U.S. adults oppose the death penalty.

The above information concluded that the null hypothesis has been rejected due to which we moves towards the conclusion that majority of U.S. adults oppose the death penalty.

<u>Now, the decision rule based on P-value criterion is given by;</u>

  • If the P-value of test statistics is less than the level of significance, then we will reject our null hypothesis.
  • If the P-value of test statistics is more than the level of significance, then we will not reject our null hypothesis.

Here, the P-value which will support our conclusion is 0.03 as at only this value our P-value is less than the level of significance of 0.05 and null hypothesis is rejected.

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Area of the shaded region = 23.33 in²

Step-by-step explanation:

Area of a sector = \frac{\theta}{360}(\pi r^{2})

Where θ = Central angle subtended by an arc

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Area of the sector BCD = \frac{60}{360}(\pi) (10^{2})

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Area of the shaded part in the ΔACD = 39.27 - 25

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Area of the shaded part of the figure = 9.06 + 14.27

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HTH :)

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