Why do we assume p=0.5 in determining the necessary sample size?
When we dont have any idea about the population proportion, no prior estimation was available,
the value 0.5 is used as the estimate for the population proportion. As the proportion can be a
A Gallup Poll used telephone interviews to survey a sample of 1025 U.S. residents over the age
of 18 regarding their use of credit cards. The poll reported that 76% of Americans said that they
had at least one credit card. Give the 95% margin of error for
Mod 7 Recordings and Links
7.01: Standard Errors / T-Intervals and step-by-step procedures:
https:/sas.elluminate.com/p.jnlp?psid=2015-0124.0743.M.02B50E368656D296A2DCBFED1F5B9E.vcr&sid=679
7.02 7.06: Step-by-Step Sig Tests / difference of means:
https:/s
MRS. RENFRO'S MATH CLASS
Apr 13, 2015 9:36:08 AM
Intro to Inference & Significance Tests
Page 1.
MRS. RENFRO'S MATH CLASS
Apr 13, 2015 9:36:08 AM
Intro to inference
Page 2.
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Apr 13, 2015 9:36:08 AM
Stating a Hypothesis
Page 3.
MRS.
MRS. RENFRO'S MATH CLASS
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Apr 27, 2015 9:32:23 AM
MRS. RENFRO'S MATH CLASS
Apr 27, 2015 9:32:23 AM
Intro to Inference & Significance Tests
Page 2.
MRS. RENFRO'S MATH CLASS
Apr 27, 2015 9:32:23 AM
Intro to inference
Page 3.
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Mar 28, 2015 3:08:41 PM
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Mar 28, 2015 3:08:41 PM
Confidence Intervals (CI) and Margin of Errors (MOE)
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Mar 28, 2015 3:08:41 PM
Estimating an Unknown Param
MRS. RENFRO'S MATH CLASS
May 16, 2015 2:44:53 PM
Public Page
Page 1.
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May 16, 2015 2:44:53 PM
Steps to T-Test
Page 2.
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May 16, 2015 2:44:53 PM
Tests about a population mean
Page 3.
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M
MRS. RENFRO'S MATH CLASS
May 16, 2015 3:42:30 PM
Public Page
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May 16, 2015 3:42:30 PM
Steps to T-Test
Page 2.
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May 16, 2015 3:42:30 PM
Tests about a population mean
Page 3.
MRS. RENFRO'S MATH CLASS
M
MRS. RENFRO'S MATH CLASS
Apr 26, 2015 11:55:24 AM
Public Page
Page 1.
MRS. RENFRO'S MATH CLASS
Apr 26, 2015 11:55:24 AM
Inference for Categorical Data Chi-Square Goodness-Of-Fit Test
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Apr 26, 2015 11:55:24 AM
? ? ?-?-?
Page
AP STATISTICS VIRTUAL CLASSROOM
Public Page
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Mar 16, 2015 1:01:30 PM
AP STATISTICS VIRTUAL CLASSROOM
Mar 16, 2015 1:01:30 PM
Welcome to LSRL Log Transformations
Page 2.
AP STATISTICS VIRTUAL CLASSROOM
Slide2
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Mar 16, 2015 1:01:30 PM
AP STATI
MRS. RENFRO'S MATH CLASS
May 17, 2015 12:32:35 PM
Significance Tests: 1 Proportion and 2 Proportion
Page 1.
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May 17, 2015 12:32:35 PM
Tests about a Population Proportion
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Slide3
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May 17, 2015
MRS. RENFRO'S MATH CLASS
May 17, 2015 3:08:05 AM
CI?s for Proportion Sample Size with MOE
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May 17, 2015 3:08:05 AM
CI?s for Proportions
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May 17, 2015 3:08:05 AM
Sampling Dist./St Deviaton Pro
Color Distribution of a 14 oz. Bag of M&Ms:
Is it all the same?
May 1, 2008
I)
Executive Summary
This study was conducted to determine how observed color distribution of M&Ms compared to
the M&Ms websites proposed proportions and possibly uniform distrib