according to a study by Wakefield and evans the mean annual cheese consumption of cheeseylvanians is 36 pounds with a standard deviation 10.1 pounds . suppose a simple random sample of 38 cheeseylvanians is taken and the amount of cheese they eat is recorded for a year. A) describe sampling distribution of sample mean annual cheese consumption. b) what is the probability that the mean of those sampled are 34 or less c) would it be unusual for them to eat average of 30 pounds or less a year? Explain
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.
according to a study by Wakefield and evans the
b) what is the probability that the mean of those sampled are 34 or less
c) would it be unusual for them to eat average of 30 pounds or less a year? Explain
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