please solve this with steps

Researchers investigated how the shape of a bowl affect how much ice cream people tend to scoop when serving themselves. At an "ice cream social" people were randomly given either a large circular bowl or a large square bowl. Both bowls hold the same amount when filled to capacity. They were then invited to scoop as much ice cream as they liked. (a) (Submit a screenshot of Excel.) Did the bowl shape change the selected portion size? Use a 5% level of significance and critical value(s). Here are the summaries Circular bowl Square bowl In 26 22 5.07oz 6.58oz 5 1.B4oz 2.91oz (b) (Submit a screenshot of Excel.) Use the same data to find the 95% confidence interval on the difference of means. Use the Brock Excel calculator for all calculations (c) (Submit a screenshot of your written or typed answer.) Based on the confidence interval can one conclude that the bowl shape changed the selected portion size