Question 7 The relationship between study hours and exam score was estimated as below in a linear format. Exam score = 6.24 * Study hours + 54.72 (The p-value for the coefficient of Study hours is 0.04.) Based on this equation, what is the expected exam score of a student, when she studied for 5 hours for the exam? A.) 100 B.) 23.52 C.) 85.92 D.) 92.16
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.
Question 7
The relationship between study hours and exam score was estimated as below in a linear format.
Exam score = 6.24 * Study hours + 54.72
(The p-value for the coefficient of Study hours is 0.04.)
Based on this equation, what is the expected exam score of a student, when she studied for 5 hours for the exam?
A.) 100
B.) 23.52
C.) 85.92
D.) 92.16
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