Find the area under the standard normal curve that lies between the following: Z = -1.56 and Z = -0.56. Select one: a. 0.1587 O b. 0.2283 O c. 0.3471 d. 0.8413

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A: The distribution of scores shown in the following table:Xf6255433221

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A: n1=31,X1¯=5.5,σ1=1.4,σ2=1.1,α=0.01,n2=39

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Q: solutions marked as wrong answer

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A: Mean = 4.3Standard deviation = 0.7

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A: From the provided information,

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A: N=20=0.05=0.55