Homework: 7-2: Estimating a population mean Score: 0 of 1 pt 16 of 22 (13 comple

Question

Homework: 7-2: Estimating a population mean Score: 0 of 1 pt 16 of 22 (13 complete) 7.2.25-T Refer to the acompanying data set and oonstruct a 90% confdenoo itonal es ?Click the icon to view the pulse rates for adult females and adult males. ateofthe mean pulso rate of adit fer alest then do the same teada mana co pete na Construct a 90% confdence interval ofthe mean pulse rate for adult formales. Puse Rates (Round to one decimal place as needed.) Pulse Rates (beats par minuto) Females Print Done Enter your answer in the edit fieids and then click Check Answer

Explanation / Answer

solution:-

pulse rate for adult females are
given mean = 76.15
standard deviation = 13.5676
90% confidence for z is 1.645
confidence interval formula
=> x +/- z * s / sqrt(n)
=> 76.15 +/- 1.645 * 13.5676/sqrt(40)
=> 76.15 +/- 3.5289
=> (72.6 , 79.7)

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