Claim: The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample of 139 adult males, the pulse rates have a standard deviation of 11.5 bpm. Complete parts (a) and...

Extracted text: Claim: The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample of 139 adult males, the pulse rates have a standard deviation of 11.5 bpm. Complete parts (a) and (b) below. ..... a. Express the original claim in symbolic form. < 12="" bpm="" (type="" an="" integer="" or="" a="" decimal.="" do="" not="" round.)="" b.="" identify="" the="" null="" and="" alternative="" hypotheses.="" ho:="" bpm="" bpm="" h1:="" (type="" integers="" or="" decimals.="" do="" not="">