Question

LRA #1Ì Chapter One. 1. Suppose you are interested in jearning about heart rate by gender of all adults in the country who jog at least 15 miles per week. a. Define the two variables. Which variable is quantitative? qualitative? b. Define the population. You determine the heart rates of 10 randomly selected adults who jog at least 15 miles per week. Would this determination represent a population or a sample? c. d. Is the average heart rate of 10 adults a statistic or parameter? The average heart rate of 10 adults in (d) is found to be 55 beats per minute. Does this statement describe descriptive or inferential statistic? e. Based on the average heart rate of 10 adults in (d), you concluded that the average heart rate of all adults who jog at least 15 miles per week is approximately 60 beats per minute. Does this statement describe a descriptive or inferential statistic? f.

Answer 1

Twd Variable Heait ate of male 2, Heart Yate of femdle. ho jog at least 15 miles pes w this-o-both the uariable,-06 e quantitatfuo an mea sule s'in minute n aggregate-of-abject or oq at least 15 miles per week to adults to deteimine hea Under stud In this eptthe papulation is 14 to ho ive us accurate rate this will not relilable result of our stedy Because papula tion s very large tilth 2esped Thu.s, this deteimination aill nat sepresent the. population sample 0 of si2e

erage heat ate of lo adulis is a para metei not a statistic Because e ae interest heait Tate ur aim is to estimateauerage In t Tate-of-population Athth . Thus,-it-is-an-_- pamameter af our populat pafanmete ionwe mate e absexvatt estimate this heat estimate d ualue crea which is used to i's statistic but average-heart-he-rate) is fate es t desaibes descriptue statistto Because, auerage heart ate heant d n.ean whitch tes. rt is also a descripttue statistic hecause it is a measure af central But this statisti f da n abaut entire e taking co at ieast 15 antry appropaiate. population who to adults sample