Question

Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 132 adult males, the pulse rates have a standard deviation of 10.5 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.
M: 7
bpm
H₂: Y
bpm
(Type integers or decimals. Do not round)

Answer 1

a. The original claim in symbolic form is:
σ < 11 bpm

b. The null and alternative hypotheses are:
Null hypothesis (H₀): σ ≥ 11 bpm
Alternative hypothesis (H₁): σ < 11 bpm