There are a total of 1000 data, 240 for Yes, 230 for Not sure, and 530 for No. Please tell me which of these two formulas should I use to solve the problem A.Thanks!!

Will today's children be better Row Labels Count of will today's children be better off than their parents? 530 off than their parents? No 230 Not sure Not sure 240 Not sure Yes Not sure (blank) 1000 Not sure Yes No No No No No Yes No No Yes No Yes No No No No No No No Yes No Not sure Not sure No Not sure Yes Yes Not sure No No No No No No Not sure No Yes Not sure Yes No Not sure Yes NoConfidence Interval for the Population Mean Confidence Interval for the Population Proportion (p) x X - E x +E p - E p +E We use the standard normal distribution when 1. Margin of Error when the population standard deviation, o, is known: E = Zcox, p * n 2 10 and q * n 2 10 where p is the sample proportion of success and q is the sample where ox, = Vn proportion of failure. For the homework, you may use Excel to find the margin of error: =CONFIDENCE.NORM(alpha, standard deviation, sample size) Margin of Error = E = Zc p*q n 2. Margin of Error when the population standard deviation, o, is unknown: Use the Excel template to construct confidence intervals E = tcSx , S where S& = Vn For the homework, you may use Excel to find the margin of error: =CONFIDENCE.T(alpha, standard deviation, sample size) **Follow the EXCEL or SPSS directions in the class notes when using a dataset.* *Data Set 1: Child Outlook