Which of the following correlation coefficients shows the strongest relationship?

ICQ 6 group 1

Quiz
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Mathematics
•
Professional Development
•
Easy

Mrinal Kumar
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6 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
r=0.92
r=0.23
r=0
r=(-0.98)
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The correlation coefficient, r, is always between ___ and ___.
0 and 1
-1 and 1
-1 and 0
-infinity to +infinity
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The linear regression equation for the data in the image is y = 61.93x - 1.79, where y corresponds to the total distance travelled in miles and x corresponds to the time driven in hours. According to the equation, the slope can be interpreted as:
After 0 hours of driving, they travelled 61.93 miles.
They drove at an average speed of 61.93 miles per hour.
They drove 61.93 miles in total.
They drove 61.93 hours in total.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Data was collected on the weight of a male laboratory rat for the first 25 weeks after its birth. The linear regression equation is y= 40x+100, where x is number of weeks and y is weight in grams. What does the y-intercept mean in context of the problem?
The predicted weight of the rat in the first year.
The predicted weight of the rat at birth.
The current weight of the rat.
The average increase in the rat's weight.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the slope in the following equation: y= 6 - 2/3x?
2/3
-2/3
6
-6
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If a researcher's alpha(level of statistical significance) = .05 and the regression results tell us that p = .06, what should the researcher do?
Reject the Null Hypothesis
Accept the Null Hypothesis
Would have insufficient evidence to reject the Null Hypothesis
Would have insufficient evidence to reject the Alternative Hypothesis
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