The average income of 15 randomly selected families who reside in a large metropolitan east coast city is $62,456.the standard deviation is $9652. The average income of 11 randomly I like your family reside in a rural area Of the midwest is $60,213, Who is a standard deviation of $2009 assume the population variances are not equal. At a=0.10, can it be concluded that's a familes Who live in the cities have a higher income then those who live in the rural areas. State the type of test you are running, hypotheses, test statistic, critical value, pvalue, your decision snd the conclusion about the claim
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.
The average income of 15 randomly selected families who reside in a large metropolitan east coast city is $62,456.the standard deviation is $9652. The average income of 11 randomly I like your family reside in a rural area Of the midwest is $60,213, Who is a standard deviation of $2009 assume the population variances are not equal. At a=0.10, can it be concluded that's a familes Who live in the cities have a higher income then those who live in the rural areas. State the type of test you are running, hypotheses, test statistic, critical value, pvalue, your decision snd the conclusion about the claim
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