If z is a standard normal random variable, find the value z1 for ...

[j.rubin]

If z is a standard normal random variable, find the value z1 for which: A) P(0 zz1) = 0 .276 B) P(zz1) = 0.341 C) P(zz1) = 0.819 D) P(-z1 Zz1) = 0.785

Question 2

An interval estimate is defined as:
 a. the average of the sample values.
  b. the range of the sample values.
  c. the range of values that are likely to include the actual population parameter.
  d. the range of values that are likely to include the actual sample statistic.
  e. the population standard deviation.

[morganmarie791]

Answer to Question 1

0.76; 0.41; -0.91; 1.24

Answer to Question 2

C

[j.rubin]

Excellent

[smrtceo]

Wow, this really help