5.13
When a particular penny is held on its edge and spun, the probability that
heads are face up when the coin comes to rest is 4/9. If the coin is spun 4
times, the probability that the coin will co
CLT(Central Limit Theorem) and Normal Probabilities - Draw a normal graph for each
problem. Include x scores and z scores and shade appropriate areas. 1. Replacement times for CD players are normally
1 of 24
Consider the following set of random variables:
I. Total number of points scored during a football game
II. Lifespan in hours of a halogen light bulb
III.Height in feet of the ocean's tide at
Question 1
Determine whether each of the following statements is true or false.
A) The margin of error for a 95% confidence interval for the mean increases as the sample size
=
D) The sample size requ
12. (NUEVO)
x values (IQ)
xbar = 108.9
S.D. of x = 13.17
y values (GPA)
ybar = 7.447
S. D. of y = 2.10
Equation of LSL = Regression line (y^ calculation)
y^ = b0 + (b1)* x
y^ = Altered Response variab
Unit Review - TEST 3 - Statistics 1. Replacement times for CD players are normally distributed with a mean of 7.1 years and a standard deviation of 1.4 years. A) Find the probability that a randomly s
Random Variables and Probability Distributions
Which wager would you prefer?
You are given $100 and must pick one of two wagers, for an outcome based on flipping a fair coin:
a) You win $200 if it com
Descriptive Statistics
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Descriptive Stats
Descriptive statistics are used to describe data, i.e., descriptive statistics are used to summarize data in order
Central Limit Theorem
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Question
Suppose we wanted to know the average height of all women attending UST how could we go about doing this?
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Question
Su
Confidence Intervals
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Estimation
Estimation is a form of statistical inference Estimation of population parameters
Estimator a formula/process for estimating
Confidence Intervals
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Quick Review
Constructing a CI
1. 2.
3.
4.
5.
6.
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t-distribution
Students t-distribution Similar to a standard normal distribu
MATH 3332 Midterm Exam Spring 2011 Directions: Please read each question carefully. Make sure to clearly mark your answers and show all necessary work. You may only consult with your professor on thes