(a) Find ?z such that the proportion of observations that are less than ?z in a...

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(a) Find ?z such that the proportion of observations that are less than ?z in a...

(a) Find ?z such that the proportion of observations that are less than ?z in a standard normal distribution is 0.23.0.23. (Enter your answer rounded to two decimal places.)

?=z=

(b) Find ?z such that 23%23% of all observations from a standard normal distribution are greater than ?.z. (Enter your answer rounded to two decimal places.)

?=z=

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(a) Find ?z such that the proportion of observations that are less than ?z in a...

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