Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 68.7 bpm. For a random sample of 161 adult​ males, the mean pulse rate is 67.4 bpm and the standard deviation is 10.8 bpm. Complete parts​ (a) and​ (b) below.   Express the original claim in symbolic form                 bpm ​(Type integers or decimals. Do not​ round.)   Identify the null and alternative hypotheses.   Ho:      bpm H1:      bpm ​(Type integers or decimals. Do not​ round.)

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