: HWCh5(1-5) Sav 18 of 23 (23 complete) HW Score: 89 66%, 26 of 29 Question Help

Question

: HWCh5(1-5) Sav 18 of 23 (23 complete) HW Score: 89 66%, 26 of 29 Question Help consumption of ice cream (n pounds) in the United States can be approximated by the normal distribution, as shown in the H-15.8 st annual per capita consumption of ice cream that can be in the bottom 20% of consumptions? o values does the middle 80% of the consumptions lie? 4 16 28 Consumpton (in lbs) nual per ca tta consumption of ice cream that be in the bottom 20% of consumptions s cimal place as needed.) pounds. r in the answer box and then click Check Answer

Explanation / Answer

a)here as we know for bottom 20% ; critical z =-0.84

hence corresponding bottom 20% value =mean +z*Std deviation =15.8-0.84*5.1=11.52

b)

for middle 80% values critical z =-/+1.28

hence corresponding middle 80% value =mean +z*Std deviation =15.8-/+1.28*5.1=9.27 to 22.33

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