Question: 128 full-time workers are selected in a small city. If X is the number of full-time workers who are saving for retirement, then the distribution
128 full-time workers are selected in a small city. If X is the number of full-time workers who are saving for retirement, then the distribution of X can be approximated with a normal distribution, N(64,5.7), where the mean (?) is 64 and standard deviation (?) is 5.7.

Using this approximation, find the probability that 67 or 68 full-time workers are saving for retirement. You may use the portion of the Standard Normal Table below. Z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.3 0.6179 0.6217 0.6255 0.6293 0.6331 0.6368 0.6406 0.6443 0.6480 0.6517 0.4 0.6554 0.6591 0.6628 0.6664 0.6700 0.6736 0.6772 0.6808 0.6844 0.6879 0.5 0.6915 0.6950 0.6985 0.7019 0.7054 0.7088 0.7123 0.7157 0.7190 0.7224 0.6 0.7257 0.7291 0.7324 0.7357 0.7389 0.7422 0.7454 0.7486 0.7517 0.7549 0.7 0.7580 0.7611 0.7642 0.7673 0.7704 0.7734 0.7764 0.7794 0.7823 0.7852 0.8 0.7881 0.7910 0.7939 0.7967 0.7995 0.8023 0.8051 0.8078 0.8106 0.8133 0.9 0.8159 0.8186 0.8212 0.8238 0.8264 0.8289 0.8315 0.8340 0.8365 0.8389 . Round your answer to two decimal places. Provide your answer below: Previous Next
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