Weatherwise magazine is published in association with the American meteorological society. Volume 46 number six has a rating system to classify nor'easter Storms that frequently hit New England states and can cause much damage near the ocean coast. A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that a nor'easter is in progress At the severe storm class rating. A. Let's say that we want to set up a statistical test to see if the wave action is dying down or getting worse. What would be the null hypothesis regarding average wave height? B. If you wanted to test the hypothesis that the storm is getting worse what would you use for the alternative hypothesis? C. If you wanted to test the hypothesis that the waves are dying down what would you use for the alternative hypothesis? D. suppose you do not know whether the storm is getting worse or dying out. You just want to test the hypothesis that the average wave height is different either higher or lower from the severe storm class rating. what would you use for the alternative hypothesis? E. For each of the test in parts b c and d would the area corresponding to the P value be on the left on the right or on both sides of the mean? Explain your answer in each case.
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Weatherwise magazine is published in association with the American meteorological society. Volume 46 number six has a rating system to classify nor'easter Storms that frequently hit New England states and can cause much damage near the ocean coast. A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that a nor'easter is in progress At the severe storm class rating. A. Let's say that we want to set up a statistical test to see if the wave action is dying down or getting worse. What would be the null hypothesis regarding average wave height? B. If you wanted to test the hypothesis that the storm is getting worse what would you use for the alternative hypothesis? C. If you wanted to test the hypothesis that the waves are dying down what would you use for the alternative hypothesis? D. suppose you do not know whether the storm is getting worse or dying out. You just want to test the hypothesis that the average wave height is different either higher or lower from the severe storm class rating. what would you use for the alternative hypothesis? E. For each of the test in parts b c and d would the area corresponding to the P value be on the left on the right or on both sides of the mean? Explain your answer in each case.
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