If the coefficient increases and the standard error stays the same, the p-value will decrease.    True  False

What would happen to the variance of test scores if an instructor multiplies each score by 2? a. It increases by 2 points b. it becomes four times as large c. It stays the same d. it will decrease

An environmentalist wants to determine the relationships between the numbers (in thousands) of forest fires over the year and the number (in hundred thousands) of acres burned. The data for 8 recent years are shown.   Required: Find the coefficient of determination. Only the final answer should be rounded-off to TWO decimal places.

A researcher wants to determine if the exam scores of the students are dependent on the length of time spent in studying the subject. Ten students in a certain class were taken and the results are shown in the table below where X is the time spent in studying the subject in hours and Y is the examination scores.Which of the following statements best describes the coefficient of variation? * 79.44% of the total variation in the time spent in studying the subject is explained or accounted for by its linear relationship with the examination score       63.11% of the total variation in the time spent in studying the subject is explained or accounted for by its linear relationship with the examination score.       79.44% of the total variation in the examination score is explained or accounted for by its linear relationship with the time spent in studying the subject.       63.11% of the total variation in the examination score is explained or…