Question: QUESTION: PART (c)-(d) will be posted in the comments Use the sample data and condence level given below to complete parts (a) through (d). In

QUESTION: PART (c)-(d) will be posted in the comments

Use the sample data and condence level given below to complete parts (a) through (d). In a study of cell phone use and brain hemispheric dominance, an Internet survey was emailed to 2605 subjects randomly selected from an online group involved with ears. 1061 surveys were returned. Construct a 95% confidence interval for the proportion of returned surveys. a Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. 0.407 (Round to three decimal places as needed.) b) Identify the value of the margin of error E. E=D (Round to three decimal places as needed.) POSITIVE z Scores Standard Normal (z) Distribution: Cumulative Area from the LEFT 01 03 .05 .06 .07 08 5160 .5199 .5239 .5279 .5319 .5359 D.0 0.0 5000 .5040 5080 5120 .5753 0.2 5793 .5832 5871 .5910 5948 .5987 .6026 .6064 6103 .6141 0.2 0.3 6179 .6217 .6255 6293 6331 6368 . 6406 .6443 .6480 .6517 0.3 .6879 6915 6950 6985 7019 7088 7190 .7486 .7517 7549 0.6 0.6 .7257 .7291 .7324 .7357 .7389 .7422 .7454 0.8 .7910 .7939 .7995 .8023 .8061 8389 0.9 0.9 8159 .8186 8212 8238 .8264 .8289 .8315 .8340 8365 1.0 .8413 8830 1.1 1.1 8643 8665 8686 8708 8729 .8749 8770 .8790 1.2 8849 8869 .8888 .8907 8925 .8944 .8962 .8980 .8997 .9015 1.2 1.3 .9236 .9251 9265 .9279 .9292 .9306 .9319 1.4 1.4 .9192 .9207 .9222 1.5 9332 9345 9370 .9406 .9418 .9429 1.5 9357 9382 1.6 .9452 9564 9573 9582 9591 9599 .9608 .9616 .9625 9633 1.7 1.7 9554 1.8 1.8 .9641 9649 .9656 9664 .9671 .9678 .9686 .9693 .9699 9706 1.9 9798 .9803 .9808 .9812 .9817 2.0 2.0 9772 .9778 .9783 .9788 9793 2.1 9821 9826 9830 .9834 .9838 .9842 .9846 .9850 .9854 9857 2.1 2.2 2.2 .9864 .9898 .9901 .9916 9893 9896 .9904 .9909 2.3 2.3 .9931 9932 .9934 .9936 2.4 2.4 9918 .9920 .9922 .9925 .9927 .9929 .9949 2.5 2.5 2.6 9953 .9965 .9966 .9957 9959 .9960 .9961 .9962 .9963 .9964 2.6 .9968 .9969 . 9970 .9971 .9972 .9973 .9974 2.7 2.7 .9965 9966 .9967 2.8 9974 9975 9986 2.9 2.9 9981 9982 9982 .9983 9984 .9984 .9985 .9985 9986 . 9990 3.0 3.0 .9987 .9987 9987 9988 .9988 . 9989 .9989 .9989 .9993 3.1 3.1 9995 3.2 3.2 .9993 .9993 .9994 9994 . 9994 .9995 .9995 .9994 .9994 . 9996 3.3 3.3 9995 9995 .9995 .9996 .9996 .9996 .9996 .9996 .9997 .9997 .9997 .9997 9997 3.50. and up 9999 .01 .04 .06 09 .03 .05 07 08

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