Hw4 STAT 201: Normal- x-yl HW4 STAT 201: Normal X Chegg Study I Guided S/X c ww.

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Hw4 STAT 201: Normal- x-yl HW4 STAT 201: Normal X Chegg Study I Guided S/X c ww.webassign.net/web/Student/Assignment Responses last?dep-17264004?course-443014635852&target-web;/Student/Assignment Responses/last?dep#17264004& a D) The call times that enclose the central 95% of the distribution are: Note: Round your answers to two decimal places for this problem. Low: to High: 3. -/3 points My Notes Let "Z" be distributed as a standard normal variable. Find the value(s) for zthat satisfies each of the following probabilities Hint: I know you guys hate to do this because you think it's a waste of your time but y'all should really draw an appropriate diagram for each part Note: Round all answers to the nearest hundredth. A) P(2s z*)-0.8713. B) P(Z z) 0.8800 C) P(-z sZsz)-0.8156. 4. 6 points My Notes Find the following probabilities for a standard normal random variable Z Note: Round your answers to four decimal places. A) P(Z -2.19) B) PZ> 0.21) C) P(-0.30 s Z

Explanation / Answer

3)

a)P(Z < z*) = 0.8713

Or, z* = 1.13

B) P(Z > z) = 0.8800

Or, P(Z < z) = 1-0.8800 = 0.1200

Or, z = - 1.175

C) P(-z < Z < z) = 0.8156

Or, 2*P(Z < z) - 1 = 0. 8156

Or, P(Z < z) = 0.9078

Or, z = 1.33

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