please solve the second part

Canadian (g) U.S. (g) 1 2.343 2.555 Although the Canadian and U.S. one-cent coins have slightly different dimensions and alloy compositions, the two types of pennies have similar masses. The table below lists the masses of individual pennies from each country measured using the same balance. Compare the two sets of one-cent coins by determining 1 calculated . Refer to the table of Student's i values as necessary. Assume that the population standard deviation (6) for each data sel is the same. 2 2.376 2.506 13 2.297 2.497 4 2.327 2.559 5 2.363 2.522 6 2.315 2.486 7 2.360 2.543 8 2.336 2.531 9 2.307 2.534 10 2.516 Talculated 17.130308 Are the masses of the Canadian and U.S. one-cent coins signilicantly dillcrent at the 98% conlidence level? The difference is significant. The dillerence is not significant. Suppose the number of replicate measurements and the average mass of an individual penny remain the same, but the standan Suppose the number of replicate measurements and the average mass of an individual penny remain the same, but the standard deviation of each data set is three times greater than its original value. Calculate the 1 value to compare these two data sets. 1 For the second sel of measurements, is there a significant dillerence in the masses of the two types of coins at the 98% confidence level? The dillerence is significant. The dillerence is not significant