13 Answered Questions for the topic Statistical Method

Statistical Method Statistics Statistics Question

06/01/18

Stat could someone please help with this urgent
What is an example of when you would want consistent data and, therefore, a small standard deviation?Example: Race-car DriverSmall Standard Deviation: Understanding RPM and when to change gearsThe... more
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11/23/17

I have a question about hypothesis testing with two population mean.
Hi,I have a question about hypothesis testing with two population mean. I have two populations (GPA and expected salary). Also, my research question is: Are the students with high average GPA... more
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07/18/17

Is ANOVA table a must for showing moderation effect, while using Hierarchical multiple regression?
I forgot to put AVOVA table in my thesis paper. Now I want to know, Is there any way to defend? I explained moderation effect by model summary table and coefficiency table.
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12/13/16

Hi, what analysis is appropriate for the following research?
data collected from an experiment to determine whether prior information about a team’s aggressive reputation impacts on the way in which referees perceive the intent to harm when two players are... more
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11/16/16

Probability Function
The probability density function f(x) of a continuous random variable X is:   f(x)={ -kx, If -1<x<o       ={k, If o≤x<1, where k is a positive constant.       ={o, otherwise. I, Graph... more
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04/05/16

(3-3)*(6+2)=?
how to find the answer to this problem?
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Statistical Method Statistics Statistics Question

03/25/16

You want to determine the migration pattern of bears in Yellowstone park
Determine Whether the situation calls for a survey, an observational study or an experiment explain your answer.    you want to determine the migration pattern of bears in Yellowstone... more
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Statistical Method Math Statistics Math Help

09/19/14

Principle, a distribution of means
1) In principal, a distribution of means can be formed by A) calculating the mean of all the possible samples of a given size and dividing it by the variance. B) using the sample's mean and... more
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Statistical Method Statistics Spss Means

05/10/14

Comparing multiple means from a single sample post hoc in SPSS
For my research project I measured customer satisfaction on a 7 point Likert scale. For each business unit we measured satisfaction on 10 different items. On the first sight, the means seem to be... more
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03/12/14

Yule-Walker equations
Problem . Show that the Yule-Walker equations hold even when we do not assume c=0.?
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09/29/13

ANOVA Excel Worksheet
The following table contains a random sample of 40 women partitioned into three groups:Group 1: ages below 20Group 2: ages 20 through 40Group 3: ages over 40the values in the table are systolic... more
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Statistical Method Math Statistics Probability

09/03/13

How do I show Tchebysheffs's theorem,
Let a k ≥ 1. show that for any set of n measurements, the fraction included in the interval y¯ − ks to y¯ + ks is at least (1 - 1/k²).   hint:  s² = 1/(n-1)[ ∑(y - y¯)²] In this expression ,... more
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Statistical Method

01/20/13

what is kurtosis method of measurement in data distribution
please in statistical method,there is skewness and kurtosis . the kurtoisis measure the peakness of adistribution.
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