Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Show AH Work!!! 1. Find the probability value: (15 points = 5 points each) a) P(-0.32 5 z 51.62)= b) P(z>-1.03)= e) P(zg-1.35)= 2. Find

image text in transcribedimage text in transcribedimage text in transcribed
image text in transcribedimage text in transcribedimage text in transcribed
Show AH Work!!! 1. Find the probability value: (15 points = 5 points each) a) P(-0.32 5 z 51.62)= b) P(z>-1.03)= e) P(zg-1.35)= 2. Find the value of 20. such that: a) P( -z:: E z 5 20) = 0.82 (5 points) b) PG: E 20) = 0.9082 (5 points) 3. The random variable X is normally distributed with mean 80 and standard deviation 12. a) "What is the probability that a 1Jalue of X chosen at random will be between 7'0 and 85'? (10 points) b) What is the probability that a value of X chosen at random will be less than 75? (IllI points) Formulas Discrete Probability Distribution Mean E(X ) = u = >xP(x) all x Variance v(X)=o' = >(x -u)'P(x) Standard Deviation 0 = VO2 all x Binomial Distribution If X ~ Bin(n, p), then P(X = x) -(20*(1-pax-. n! x!(n-x)[ P (1-p)"-* x=0,1,...,n. Computing Standard Scores Individual Z = - data value-mean standard deviation Group Z = data value-mean standard deviation/ Vn Hypothesis Testing Mean Z = x - H Proportion Z =- P-P pq V InTable of Standard Normal Probabilities for Negative Z-scores Table of Standard Normal Probabilities for Positive Z-scores Note that the probabilities given in this table represent the area to the LEFT of the z-score. The area to the RIGHT of a z-score = 1 - the area to the LEFT of the z-score

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Prealgebra & Algebra (subscription)

Authors: Elayn Martin Gay

5th Edition

0134708601, 9780134708607

More Books

Students also viewed these Mathematics questions

Question

The quality of the argumentation

Answered: 1 week ago