Claim: The standard deviation of pulse rates of adult males is more than12bpm. For a random sample of
152 adult males, the pulse rates have a standard deviation of 13.3bpm. Complete parts (a) and (b) below.
a. Express the original claim in symbolic form
b. Identify the null and alternative hypotheses
Solution:
Given:
Original claim in words : The standard deviation of pulse rates of adult males is more than 12bpm.
Part a) Express the original claim in symbolic form
For standard deviation we use symbol
Thus claim in symbolic form is: bpm.
Part b) Identify the null and alternative hypotheses
Null hypothesis H0 is:
bpm
Vs
alternative hypotheses H1 is:
bpm.
Claim: The standard deviation of pulse rates of adult males is more than12bpm. For a random...
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