ndenice level is 9970, thou na dollarS, and the histogra m of 64 player salaries (in thousands llars) of TOotball players ona team is as showm. ect the correct choice below and, if necessary, fl in the answer box to complete your choice. A. 4/2= (Round to two decimal places as needed.) в. Za/2 =| (Round to two decimal places as needed.) c. Neither the normal distribution nor the t distribution applies.
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.
As the population standard deviation is known, we will use z test.
Histogram shows that the distribution of the population is skewed, but we will assume the normal because sample size is higher than 30 (from the standard normal table).
To find the critical value for a two-tailed test, use the standard normal table to find the z-score, which cuts off an area of 0.005 in the right tail of the normal curve and 0.005 in the left of the normal curve. Hence, the critical value of z at the 99% confieence level, i.e., 10% level of significance is 2.58
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