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FSC-MTH110-Summer2018 Test: Module 3 Examina tion Time Remaining:00:4741 Submit

ID: 2947678 • Letter: F

Question

FSC-MTH110-Summer2018 Test: Module 3 Examina tion Time Remaining:00:4741 Submit Test This Question: 1 pt 1 of 20 (0 complete)This Test: 20 pts possible Assume that thermometer readings are normally distributed with a mean of 0°C and a standard deviation of 1.0002 A thermometer is randomly selected and tested. For the case below, draw a sketch, and find the probability of the reading. (The given values are in Celsius degrees.) Between 0.75 and 1.50 Draw a sketch. Choose the correct graph below. ? ?. ??. 0.75 z-1.50 0.75 z-150 z-075 z-1.50 The probability of getting a reading between 0.75 C and 1.50°C is (Round to four decimal places as needed.) Click to select your answerls).

Explanation / Answer

#1.
P(0.75 < z < 1.5)
= P(z < 1.5) - P(z < 0.75)
= 0.9332 - 0.7734
= 0.1598

Sketch is as shown in option B

#2.
P(X < 0.75)
= (0.75 - 0)/(5 - 0)
= 0.15

#4.
Given CI Level 90%
p = 0.42
ME = 0.08
z-value of 90% CI = 1.6449
n = (z/ME)^2*p*(1-p)
= (1.6449/0.08)^2*0.42*0.58
= 103