The economic dynamism, which is the index of productive growth in dollars for countries that are designated by the World Bank as middle-income are in table #8.3.9 ("SOCR data 2008," 2013). Compute a 95% confidence interval for the mean economic dynamism of middle-income countries.
Table #8.3.9: Economic Dynamism ($) of Middle Income Countries
25.8057
37.4511
51.915
43.6952
47.8506
43.7178
58.0767
41.1648
38.0793
37.7251
39.6553
42.0265
48.6159
43.8555
49.1361
61.9281
41.9543
44.9346
46.0521
48.3652
43.6252
50.9866
59.1724
39.6282
33.6074
21.6643