Software gives test statistic χ2=69.8and P-value close to 0 . The correct interpretation of this result is

(a) the probability of getting a random sample of 4877teens that yields a value of χ2of 69.8or larger is basically 0.

(b) the probability of getting a random sample of 4877teens that yields a value of χ2of 69.8or larger if H0is true is basically 0.

(c) the probability of making a Type I error is basically 0.

(d) the probability of making a Type II error is basically 0.

(e) it's very unlikely that these data are true.

Short Answer

Expert verified

The correct answer is Option (b).

Step by step solution

01

Given Information

Software gives test statistic χ2=69.8 and P value close to 0.

02

Explanation

The p-value is the probability of obtaining a value (statistic) of the test result as extreme as, or more extreme than, the value that has been obtained, assuming H0to be true. So, the p-value is not considered in making the probability. It is just a probability of getting a certain result when H0is true.

In the given scenario, the interpretation of the result is:

The probability of obtaining a test statistic value X2=69.8at least as extreme as the observed value, when the null hypothesis is assumed to be true is0.

That is, the probability of getting a random sample of 4877teens that yields a value of localid="1650450318348" x2of localid="1650450326474" 69.8or larger iflocalid="1650450369804" H0is true is basically true.

Therefore, the correct answer is Option (b).

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