the probability that the test results are inaccurate for more than 12% of those persons sampled. Show your work and give your answer in the form of a sentence
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.
Alzheimer’s disease is a progressive, irreversible disorder, and at this time the cause and cure
are unknown. However, researchers at the University of Minnesota developed a brief, efficient
and accurate means of predicting Alzheimer’s is persons from 65 to 85 years of age. The test
takes about 10 minutes and requires the patient to try to recall 10 words after using each word
twice in sentences. According to the researchers, the test results are accurate 95% of the time.
If the test is administered to a random sample of 25 persons from 65 to 85 years of age, what is
the
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