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Chapter 11: 40 (page 657)

Graph the situation. Label and scale the horizontal axis. Mark the mean and test statistic. Shade in the region corresponding to the p-value.

Short Answer

Expert verified

The graph:

Step by step solution

01

Given Information

Given data:

02

Explanation

伪=0.05So take a decision "reject the null hypothesis H0"because p-value<伪so p--value is 0.

As a result of "rejecting the null hypothesis," the alternative hypothesis was accepted, and there is sufficient data to suggest that self-reported ethnicity is influenced by daily smoking levels.

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Most popular questions from this chapter

Let伪=0.05

Decision: ________

Conclusion (write out in a complete sentence.): ________

Isabella, an accomplished Bay to Breakers runner, claims that the standard deviation for her time to run the 7.5mile race is at most three minutes. To test her claim, Rupinder looks up five of her race times. They are 55minutes, 61minutes, 58minutes, 63 minutes, and 57 minutes.

Read the statement and decide whether it is true or false.

In a test of independence, the expected number is equal to the row total multiplied by the column total divided by the total surveyed.

The expected percentage of the number of pets students have in their homes is distributed (this is the given distribution for the student population of the United States) as in Table 11.12.

Number of PetsPercent0181252303184+9

A random sample of 1,000students from the Eastern United States resulted in the data in Table 11.13.

Number of PetsFrequency02101240232031404+90

At the 1% significance level, does it appear that the distribution 鈥渘umber of pets鈥� of students in the Eastern United States is different from the distribution for the United States student population as a whole? What is the p-value?

What are the null and alternative hypotheses for a math teacher who sees if two of her classes have the same distribution of test scores.
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