MA155 740 201830 Karlee Rongey 6/12/18 3:27 PM Test: Online Test 3--Ch 6-7( Sect

Question

MA155 740 201830 Karlee Rongey 6/12/18 3:27 PM Test: Online Test 3--Ch 6-7( Section 6.1, 7.1, 7.2) Tine Remaning: 023544 S tempi This Question: 1 pt 5 of 5 (2 complete) This Test: 5 pts possible The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with mean 1262 and a standard deviation of 117. (a) Determine of chocolate chips in a bag b) Determine the number of chocolate chips in a bag that make up the middle 95% of bags. Click the icon to view a table of areas under the normal curve ources a) The 30th percentile for the number of chocolate chips in a bag of chocolate chip cook Round to the nearest whole number as needed.) b The number of chocolate chips in a bag that make up the middie 95% of bags is to (Round to the nearest whole number as needed. Use ascending order) ing chocolate chips. ols

Explanation / Answer

a)

for 30 th percentile ; crtiical z =-0.52

hence corresponding value =1262-0.52*117 =1201

b)

for middle 95% values ; z =-/+ 1.96

hence corresponding values =1262-/+ 1.96*117 =1033 to 1491

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