exam Maths Puzzle Numerical Ability

A data set of size 19 has a correlation coefficient of r = -0.432. Test the significance of r at the 5% level and at the 1% level.
.
.
I am so confused. Please help,

Ellen

Read Solution (Total 0)

exam Other Question

you see i am a high school student and i am stuck in this question. Determine the measure of an angle that is supplementary to an angle with a measur of 92 degrees. please help me! A car travels 60 miles in the same time that a car traveling 10 per hour faster travels 90 miles. What is the rate of each cars?