Question

​Claim: The standard deviation of pulse rates of adult males is more thanmore than 11 bpm. For a random sample of 145 adult​ males, the pulse rates have a standard deviation of 11.7 bpm. Complete parts​ (a) and​ (b) below. a. Express the original claim in symbolic form. ▼ pp sigmaσ muμ ▼ not equals≠ equals= greater than> less than< nothing bpm ​(Type an integer or a decimal. Do not​ round.) b. Identify the null and alternative hypotheses. Upper H 0H0​: ▼ muμ pp sigmaσ ▼ greater than> equals= less than< not equals≠ nothing bpm Upper H 1H1​: ▼ muμ sigmaσ pp ▼ greater than> equals= not equals≠ less than< nothing bpm

Answer 1

Answer

it is given that the initial claim is that the standard deviation of pulse rates of adult males is more than 11 bpm.

(A) initial claim in symbolic form can be written as

g 11 bpm

(B) Null hypothesis will be the original claim that standard deviation = 11 bpm and claim is that the standard deviation is more than 11 bpm

so, we can write hypotheses as

Ho o 11 bpm H1:σ> 11 bpm