a) Formulate the appropriate null and alternative hypotheses. b)Conduct a test of your hypotheses in (a). Show all your steps, including the test statistic, distribution used, and parameters involved. c)Interpret your p-value in the context of this problem and report your findings. What does the data suggest about unemployment rates in your district for minority teenagers?
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.
1. Based on census data, the unemployment rate for minority teenagers has been hovering steadily at 15%. You suspect that your district has a much higher unemployment rate for this demographic, and you want to get funding to initiate a program to reduce unemployment rate to at least national levels. A random survey of 180 from this demographic in your district revealed a staggering unemployment rate of 22.2%. Does your data provide evidence that there is a need for such a program in your district?
a) Formulate the appropriate null and alternative hypotheses.
b)Conduct a test of your hypotheses in (a). Show all your steps, including the test statistic, distribution used, and parameters involved.
c)Interpret your p-value in the context of this problem and report your findings. What does the data suggest about unemployment rates in your district for minority teenagers?
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