Suppose that,to test the profitability of name changes in the more recent market (the past 5 years), we analyze the stock prices of a large sample of corporations shortly after they changed names, and we finds that the mean relative increase in stock price was about 0.79% with a standard deviation of 0.12%. Suppose that this mean and standard deviation apply to the population of all companies that changed named during the past five years. Complete the following statements about the distribution of relative increases in stock prices for all companies that changed names. A/ according to chebyshev's theorem, at least ? Of the relative increases in stock price lie between 0.55% and 1.03%? 36%, 56%, 75%, 84% or 89% According to chebyshev's theorem, at least 56% of the relative increases in stock price lie between ? And ? %
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.
Suppose that,to test the profitability of name changes in the more recent market (the past 5 years), we analyze the stock prices of a large sample of corporations shortly after they changed names, and we finds that the mean relative increase in stock price was about 0.79% with a standard deviation of 0.12%. Suppose that this mean and standard deviation apply to the population of all companies that changed named during the past five years. Complete the following statements about the distribution of relative increases in stock prices for all companies that changed names.
A/ according to chebyshev's theorem, at least ? Of the relative increases in stock price lie between 0.55% and 1.03%? 36%, 56%, 75%, 84% or 89%
According to chebyshev's theorem, at least 56% of the relative increases in stock price lie between ? And ? %
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