For each αand observed significance level (p-value) pair, indicate whether the null hypothesis would be rejected.

a.α=0.5,p-value=.10

b.α=0.10,p-value=.05

c.α=0.01,p-value=.001

d.α=0.25,p-value=.05

e.α=0.10,p-value=.45

Short Answer

Expert verified

The null hypothesis would be rejected for every case except the last one because the given p-values are greater than the value in the last one.

Step by step solution

01

General rule for each case

P-value stands for probability value. It indicates how likely it is that a result occurred by chance alone.

Here, αis the level of significance.

If the p-value is less than the level of significance, reject the null hypothesis. Otherwise do not reject the null hypothesis.

02

Finding whether the null hypothesis will be rejected or not for part a.

a. Given that,α=0.5

The p-value is 0.10

Here, the p-value is less than the αvalue.

Therefore, we reject the null hypothesis

03

Finding whether the null hypothesis will be rejected or not for part b.

b. Given that, α=0.10

The p-value is 0.05

Here, the p-value is less than the αvalue.

Therefore, we reject the null hypothesis.

04

Finding whether the null hypothesis will be rejected or not for part c.

c. Given that,α=0.01

The p-value is 0.001

Here, the p-value is less than the αvalue.

Therefore, we reject the null hypothesis.

05

Finding whether the null hypothesis will be rejected or not for part d.

d. Given that,α=0.25

The p-value is 0.05

Here, the p-value is less than the αvalue.

Therefore, we reject the null hypothesis.

06

Finding whether the null hypothesis will be rejected or not for part e.

e. Given that, α=0.10

The p-value is 0.45

Here, the p-value is greater than the αvalue.

Therefore, we do not reject the null hypothesis.

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Most popular questions from this chapter

Question: Independent random samples selected from two normal populations produced the sample means and standard deviations shown below.

Sample 1

Sample 2

n1= 17x¯1= 5.4s1= 3.4

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99

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PA Cooperative

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72

90

66

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Source: Based on G. G. Chester, “Explaining Catch Variation Among Baja California Lobster Fishers Through Spatial Analysis of Trap-Placement Decisions,” Bulletin of Marine Science, Vol. 86, No. 2, April 2010 (Table 1).

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PairSample from Population 1

(Observation 1)

Sample from Population 2(Observation 2)
123456739648417247

c. Form a 95% confidence interval for μd.

d. Test the null hypothesis H0d=0against the alternative hypothesis Had0. Useα=.05 .

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