2. A dietitian wishes to see if a person's cholesterol level will change if the diet is supplemented by a certain mineral. Six respondents were pretested and then took the mineral supplement for a six week period. Can it be concluded that the cholesterol level has been changed at that the data is approximately normally distributed.Cholesterol level is measured in milligrams per deciliter. = 0.10. Assume Subject Before 1 2 3 4 6. 210 235 208 190 172 244 After 190 170 210 188 173 228 Perform the 5-steps in hypothesis testing.
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.
![2. A dietitian wishes to see if a person's cholesterol level will change if the diet is supplemented by a
certain mineral. Six respondents were pretested and then took the mineral supplement for a six
week period. Can it be concluded that the cholesterol level has been changed at a = 0.10. Assume
that the data is approximately normally distributed.Cholesterol level is measured in milligrams per
deciliter.
Subject
Before
1
4
6.
210
235
208
190
172
244
After
190
170
210
188
173
228
Perform the 5-steps in hypothesis testing.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd26f653b-c8d4-4446-b017-c0ff2ba69cf1%2F63f3131c-e9ae-4156-aec7-7d6b7d7a02cf%2Fk39f27g_processed.png&w=3840&q=75)
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