1. Expert Solution Answer to Problem 3TY The cumulative area that corresponds to a z-score of -2.19 is 0.0143. Explanation of Solution Given info: The Z-score is -2.19. Calculation: The cumulative area that corresponds to a z-score of -2.19 represents the area to the left of -2.19. Shade the region to the left of z = -2.19 as shown below in Figure (1). 2=-2.19 Figure (1) The indicated area to the left of z = -2.19 is obtained by finding the area to the left of -2.19.

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Could you please help me step by step how to find the cumulative area on a Texas 84 + CE calculator.? When I put in my data I never see a graph even if I zoom out. Thank you.

1. Expert Solution
Answer to Problem 3TY
The cumulative area that corresponds to a z-score of -2.19 is 0.0143.
Explanation of Solution
Given info:
The z-score is -2.19.
Calculation:
The cumulative area that corresponds to a z-score of -2.19 represents the area to the left of -2.19.
Shade the region to the left of z = -2.19 as shown below in Figure (1).
z=-2.19
0
Figure (1)
The indicated area to the left of z = -2.19 is obtained by finding the area to the left of -2.19.
Use Table 4: Standard normal distribution to find the area to the left of -2.19.
Procedure:
• Locate-2.1 in the left column of the Table 4.
• Obtain the value in the corresponding row below 0.09.
That is, P(Z < -2.19) = 0.0143
Thus, the cumulative area that corresponds to a z-score of -2.19 is 0.0143.
Transcribed Image Text:1. Expert Solution Answer to Problem 3TY The cumulative area that corresponds to a z-score of -2.19 is 0.0143. Explanation of Solution Given info: The z-score is -2.19. Calculation: The cumulative area that corresponds to a z-score of -2.19 represents the area to the left of -2.19. Shade the region to the left of z = -2.19 as shown below in Figure (1). z=-2.19 0 Figure (1) The indicated area to the left of z = -2.19 is obtained by finding the area to the left of -2.19. Use Table 4: Standard normal distribution to find the area to the left of -2.19. Procedure: • Locate-2.1 in the left column of the Table 4. • Obtain the value in the corresponding row below 0.09. That is, P(Z < -2.19) = 0.0143 Thus, the cumulative area that corresponds to a z-score of -2.19 is 0.0143.
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