Big Babies: A public health organization reports that 29% of baby boys 6 - 8 months old in the United States weigh more than 20 pounds. A sample of 14 babies is studied. Part 1 of 2 (a) What is the mean number who weigh more than 20 pounds in a sample of 14 babies aged 6 - 8 months? Round the answer to two decimal places. The mean number who weigh more than 20 pounds is Part 2 of 2 (b) What is the standard deviation of the number who weigh more than 20 pounds in a sample of 14 babies aged 6 - 8 months? Round the answer to four decimal places. The standard deviation of the number who weigh more than 20 pounds is O.
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.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
