Claim: The standard deviation of pulse rates of adult males is more than 12 bpm. For a random sample of 128 adult males, the pulse rates have a standard deviation of 13.4 bpm. Complete parts (a) and (b) below. a. Express the original claim in symbolic form. bpm (Type an integer or a decimal. Do not round.) b. Identify the null and alternative hypotheses. Ho: bpm H1: (Type integers or decimals. Do not round.) bpm

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## Statistical Hypothesis Testing: Standard Deviation of Pulse Rates

### Problem Statement
The claim is: The standard deviation of pulse rates of adult males is more than 12 beats per minute (bpm). For a random sample of 128 adult males, the pulse rates have a standard deviation of 13.4 bpm. Complete the following parts:

### Part (a)
**Express the original claim in symbolic form.**

\[ \sigma > 12 \text{ bpm} \]

(Enter an integer or a decimal. Do not round.)

### Part (b)
**Identify the null and alternative hypotheses.**

\[ H_0: \sigma \leq 12 \text{ bpm} \]
\[ H_1: \sigma > 12 \text{ bpm} \]

(Enter integers or decimals. Do not round.)
Transcribed Image Text:## Statistical Hypothesis Testing: Standard Deviation of Pulse Rates ### Problem Statement The claim is: The standard deviation of pulse rates of adult males is more than 12 beats per minute (bpm). For a random sample of 128 adult males, the pulse rates have a standard deviation of 13.4 bpm. Complete the following parts: ### Part (a) **Express the original claim in symbolic form.** \[ \sigma > 12 \text{ bpm} \] (Enter an integer or a decimal. Do not round.) ### Part (b) **Identify the null and alternative hypotheses.** \[ H_0: \sigma \leq 12 \text{ bpm} \] \[ H_1: \sigma > 12 \text{ bpm} \] (Enter integers or decimals. Do not round.)
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