A sample of 35 weights of pre-1983 pennies has a standard deviation of XXXXXXXXXXg. Use a 0.05 significance level to test the claim that pre-1983 pennies have weights with a standard deviation greater...

A sample of 35 weights of pre-1983 pennies has a standard deviation of 0.03910 g. Use a 0.05 significance level to test the claim that pre-1983 pennies have weights with a standard deviation greater than0.0230 g. State original claim and null and alternative hypothesis. Draw appropriate curve (bell or skewed) Find critical values Compute appropriate test statistic