2000 Female Male 8. 8. 1750 1500 6 1250 4 4+ 1000 2- 2 F M Sex 750 1250 1750 750 1250 1750 Time (min) Time (min) The summary statistics are: Summary of Time (min) Count Mean StdDev F 22 1271.59 261.111 M 20 1196.75 304.369 Time (min) dnojg
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Crossing Ontario Between 1954 and 2003, swimmers
have crossed Lake Ontario 43 times. Both women and
men have made the crossing. Here are some plots (we’ve
omitted a crossing by Vikki Keith, who swam a round
trip—North to South to North—in 3390 minutes):
mers to swim the lake?
the difference between female and male times.
b) Comment on the assumptions and conditions.
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