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Q1) Assume average puppy weighs 10 pounds. Sample of 10 puppies yields sample mean of 13.2 pounds and sample standard deviation of 2.78 pounds. Suppose population standard deviation is unknown. You wish to test whether sample mean varies from population mean of 10 pounds at 5 percent level of significance using two-tailed test. Find out whether or not null hypothesis should be rejected
a) Reject the null hypothesis.
b) Fail to reject the null hypothesis.
Q2) When calculating correlation coefficient, what does a value of -2 indicate?
a) Strong negative correlation
b) Weak negative correlation
c) Strong positive correlation
d) Weak positive correlation
e) Error in the calculation
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