Many people feel that cereal is healthier alternative for children over glazed donuts. The following table contains the amount of sugar in a sample of cereal that is geared towards children

Table: Sugar Amounts in Childrens Cereal

10

14

12

9

13

13

13

11

12

15

9

10

11

3

6

12

15

12

12

Estimate the mean amount of sugar in children cereal using a 95% confidence level by answering the following questions

1) determine sample mean

2) determine sample std deviation s

3) determine degrees of freedom value

4) determine tscore corresponding to desired confidence level

5) determine error bound of the mean

6) determine the confidence interval

7) using the confidence interval select the correct description of the result of the survey

a) we estimate with 95% confidence that the population amount of sugar in cereal is between 9.7365g and 12.5793g

b) we estimate with 95% confidence that the true proportion of sugar in cereal is between 9.7365g and 12.5793g

c) we estimate with 95% confidence that the true population mean amount of sugar in cereal is between 9.7365 and 12.5793

d) we estimate with 95% confidence that the proportion of amount of sugar in cereal is between 9.7365 and 12.5793