What is the confidence level of each of the following confidence intervals for u? Complete parts a through e. Normal Curve Areas Click the icon to view the table of normal curve areas. .0000 .0398 .0793 1179 1554 1915 a. x± 1.96 .2 .3 % (Round to two decimal places as needed.) .4 .5 12 15 .6 2257 2580 2881 3159 3413 22 26 29 31. 34 b. x+ 1.645 .7 .8 .9 1.0 % (Round to two decimal places as needed.) 1.1 1.2 1.3 3643 3849 4032 4192 4332 36 38 40 420 434 c. X+2.575 1.4 1.5

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