significance of a correlation

A teacher decides to examine the hypothesis between the test scores and the overall grade point average for each student for the whole year. Find t test value and test the significance of the correlation coefficient using the P-value method. r = 0.43, ∝ = 0.02, n = 5. => 0...

The correlation coefficient for the age and blood pressure of 4 people taken randomly is given. Find t and test the significance of correlation coefficient r = 0.9478, use ∝ = 0.01 and n = 4. => 4.2, significant relationship or 1.2, no significant..

The scores of 10 students in mathematics exam and statistics exam are shown here. Student A B C D E F G H I J Scores in Mathematics 86 96 72 99 90 88 93 78 82 80 Scores in Statistics 82 93 70 98 88 90 96 80 86 78 Calculate the coefficient of correlation between these two subjects. Test th..

The grade point average of 10 students in two subjects are as follows: Subject I 2.0 2.1 2.2 3.8 3.1 3.4 2.1 2.3 2.5 2.6 Subject II 2.2 2.4 2.0 3.4 2.9 3.6 2.0 2.6 2.7 2.4 Find t test value and test the significance of the correlation coefficient using the P-value method for thi..

A shop owner wants to find the relation between the demand ( x 1 ), supply ( x 2 ) and the price ( y ) of an item. After 6 months he got this data which is shown here. Find F test value and test the significance of the multiple correlation coefficient R at α = 0.025. Deman..

The university authorities wanted to predict a student's grade on a statistics midterm score based on his/her SAT scores. Determine the correlation coefficient and the equation of the regression line for the data and predict the value of y ′ when x = 900. Test the hypothesis that th..

can be Pollution due to use of aerosols due to high density of population due to waste disposal system Out of them, major contribution of air pollutants is from industrial pollution and transport related pollution - because industrial activity and transport are continuously operative. I..