Topic: T statistic Vs Z statistic
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Answers to Common Questions
What is Z statistics?
z = (x - mean of x)/ std dev of x I thought this website was pretty good: http://www.jrigol.com/Statistics/TandZStatistics.htm Read More »
Source: http://wiki.answers.com/Q/What_is_Z_statistics
What is z value in statistics?
A z-value is usually the result of a translation from a normally-distributed variable. Through the translation into a standard normal variable (with a mean of zero and a variance/standard deviation of one), the tables available in all stati... Read More »
Source: http://wiki.answers.com/Q/How_do_you_find_z_value
How to Calculate a z-score in Statistics
In statistics, a z-score (or standard score) is used to compare means from different normally distributed sets of data. The actual score indicates how many standard deviations an observation is above or below the mean. The z-score is useful... Read More »
Source: http://www.ehow.com/how_4555631_calculate-zscore-statistics.html?...
More Common Questions
Answers to Other Common Questions
z=x-mean / sd
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Source: http://wiki.answers.com/Q/What_is_the_Z_score_formula_for_statist...
A z score is a score minus its mean divided by the standard deviation. If we do this for all the...
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Source: http://www.chacha.com/question/what-is-the-z-formula-in-statistic...
It depends on where you have set your alpha. To be significant at an alpha of .05 (typical), the z-score must exceed 1.96. Here, we are accepting a 5% error rate. To be significant at an alpha of .01 (more stringent/restrictive/conservative...
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Source: http://wiki.answers.com/Q/What_number_is_significant_for_a_z-scor...
50/50
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Source: http://wiki.answers.com/Q/What_are_the_Cheating_statistics_men_vs...
A z-score is a measure of the distance in standard deviations of a sample from the me...
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Source: http://www.chacha.com/question/what-is-a-z%26%2345%3Bscore-in-sta...
Z=SL-X/o where z is equal to sigma score, sl is specific limit, x is th...
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Source: http://www.chacha.com/question/what-is-the-formula-for-z-score-in...
You can use the Newton Method or Secant Method to find the value of the unknown variabl...
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Source: http://www.chacha.com/question/what-is-the-equation-to-find-z-in-...
