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State which type of parameter is to be estimated, and the correct method for the following....

State which type of parameter is to be estimated, and the correct method for the following. Do not solve.

A simple random sample of size 23 has a mean of 9.16 and a standard deviation of 4.92. The population is normally distributed. Construct a 99% confidence interval for the population variance.

1. The parameter of the population (Choose one) Mean, proportion, standard deviation, or variance.

2. The correct method to find the confidence interval is the (choose one) c, t, chi-square method.

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