Support for the capital punishment (the death penalty) in the US is shown in 2021 and in 1972 in the two way table below. SHOW STEPS USING EXCEL**
Year Favor Opposee Total
2021 450 382 832
1972 700 700 1400
Let {p_1}p1​ and {p_2}p2​ represent the proportion supporting capital punishment in 2021 and 1972, respectively.
What is the point estimate of p_1-{p_2}p1​−p2​, the difference in the proportion supporting capital punishment between 2021 and 1972. Round to 3 decimal place
Q12.2
Let {p_1}p1​ and {p_2}p2​ represent the proportion supporting capital punishment in 2021 and 1972, respectively. Find the lower limit of the 95% confidence interval for the change in the proportion supporting capital punishment between 1972 and 2021. Round to 3 decimal place
Lower Limit:
Q12.3
Let {p_1}p1​ and {p_2}p2​ represent the proportion supporting capital punishment in 2021 and 1972, respectively. Find the upper limit of the 95% confidence interval for the change in the proportion supporting capital punishment between 1972 and 2021. Round to 3 decimal place
Upper Limit:
Q12.4
Is it plausible that the proportion supporting capital punishment has changed over this time period?
Choice 1 of 3:Not enough information to make decision
Choice 2 of 3:Since a difference of zero is within this interval, it is plausible that there is a change in support or opposition to the death penalty in this period
Choice 3 of 3:Since a difference of zero is within this interval, it is plausible that there have been no change in support or opposition to the death penalty in this period.