I need help solving this....

Use technology and the given confidence level and sample data to find the confidence interval for the population mean . Assume that the population does not exhibit a normal distribution.

Weight lost on a diet: 95% confidence n=61 x=2.0kg s=4.9kg

What is the confidence interval for the population mean ?

_ kg < < _ (Round to one decimal place asneeded.)

Is the confidence interval affected by the fact that the data appear to be from a population that is not normallydistributed?

A.

Yes, because the sample size is not large enough.

B.

No, because the sample size is large enough.

C.

Yes, because the population does not exhibit a normal distribution.

D.

No, because the population resembles a normal distribution.