Using the standard normal table, determine a z value (to thenearest two decimal

Question

Using the standard normal table, determine a z value (to thenearest two decimal places) such that the area a. from the midpoint to z is 0.20 b. from the midpoint to z is 0.48 c. between z and negative infinity is 0.54 d. between z and positive infinity is 0.30 I was able to get a. which is 0.4772. I am so loston the other questions. I am trying to prepare my self for afinal exam coming up. These are like practice problemsgiven. Using the standard normal table, determine a z value (to thenearest two decimal places) such that the area a. from the midpoint to z is 0.20 b. from the midpoint to z is 0.48 c. between z and negative infinity is 0.54 d. between z and positive infinity is 0.30 I was able to get a. which is 0.4772. I am so loston the other questions. I am trying to prepare my self for afinal exam coming up. These are like practice problemsgiven.

Explanation / Answer

B. Look in the area part of the table; the closest number to 0.98(so that that the area from the midpoint to z will be 0.48) is0.9798, which is for z = 2.05 C. Look for numbers close to 0.54, the closest is 0.5398, for z =0.10 D. Look fir area of 0.7000, closest is 0.6985, for z = 0.52

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