Question 13, 8.1.8
HW Score: $64.64 \%, 9.05$ of 14 points
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Claim: The standard deviation of pulse rates of adult males is more than $11 \mathrm{bpm}$. For a random sample of 130 adult males, the pulse rates have a standard deviation of $11.8 \mathrm{bpm}$. Complete parts (a) and (b) below.
a. Express the original claim in symbolic form.
V $\square \square \mathrm{bm}$
(Type an integer or a decimal. Do not round.)
Answer
The original claim is that the standard deviation of pulse rates of adult males is more than 11 bpm. This can be expressed in symbolic form as \( \sigma > 11 \).
Step 1 ：The original claim is that the standard deviation of pulse rates of adult males is more than 11 bpm. This can be expressed in symbolic form as \( \sigma > 11 \).
