Question

A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches. to test this claim, a random sample of 100 doctors is obtained. of these 100 doctors, 83 indicate that they recommend aspirin. what is the corresponding p-value for the test of the survey's claim

Answer 1

8.3 out of 10 docters

Answer 2

The value of the test stastistic in this problem is approximately equal to:  B. -2.33

Explanation:

Aspirin, also known as acetylsalicylic acid (ASA), is a medication used to reduce pain, fever, or inflammation.

The test statistic is the difference between the sample proportion and the actual proportion. It is divided by standard error, assuming the null hypothesis.

A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches. to test this claim, a random sample of 100 doctors is obtained. of these 100 doctors, 83 indicate that they recommend aspirin. what is the corresponding p-value for the test of the survey's claim

The p-value or probability value is the probability to obtain test results at least as extreme as the results that actually observed during the test, assuming that the null hypothesis (it is the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.) is correct.

$\sqrt{\frac{0.9(1-0.9)}{100} } = \frac{3}{100}$

$\frac{0.83-0.9}{\frac{3}{100} } = \frac{-\frac{7}{100} }{\frac{3}{100} } = -2.333$

The value of the test stastistic in this problem is approximately equal to:

• A. -4.12
• B. -2.33
• C. -1.86
• D. -0.07

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