Psychology students at a university completed the Dental Anxiety Scale questionnaire. Scores on the scale range from 0 (no anxiety) to 20 (extreme anxiety). The mean score was 14 and the standard deviation was 3.5. Assume that the distribution of all scores on the Dental Anxiety Scale is normal with p = 14 and o= 3.5. Complete parts a through c. Click here to view a table of areas under the standardized normal curve. Table of Normal Curve Areas a. Suppose you score a 16 on the Dental Anxiety Scale. Find the z-value for this score. z=(Round to the nearest hundredth as needed.) b. Find the probability that someone scores between 13 and 18 on the Dental Anxiety S 0 P(13 sx= 18) = (Round to four decimal places as needed.) .00 .01 02 -03 C. Find the probability that someone scores above 17 on the Dental Anxiety Scale. 04 06 07 09 -0000 .0040 10120 P(x > 17)= (Round to four decimal places as needed.) _0398 .0160 .0438 0199 10239 .0478 .0279 0517 0557 .0319 0359 .0793 0832 0596 0871 0636 .0675 0910 0948 .0714 0753 .1179 1217 0987 .1026 .1255 ,1064 .1293 .1103 .1331 1368 .1141 .1554 .1591 .1628 .1406 .1443 -1664 .1915 -1700 .1480 .1950 -1736 .1517 .1985 .2019 .1772 .1808 2054 .1844 .2088 .2123 .1879 .2157 .2190 .2257 .2224 .2291 .2324 .2357 2580 2389 .2611 2422 2642 .2454 2673 .2704 .2486 .2517 .2734 .2549 2881 .2910 2939 .2764 2967 .2794 2995 .2823 3023 .2852 3159 .3186 3212 3051 3238 .3078 3264 .3106 3289 .3133 3413 3438 3461 .3315 3485 3508 .3340 .3365 3531 .3389 .3554 .3577 3599 1.1 3643 .3665 .3621 3686 1.2 3708 3849 3729 3869 .3749 .3770 .3790 .3810 .3830 1.3 3888 3907 .4032 3925 .4049 -3944 .3962 .3980 .3997 1.4 .4066 .4082 4192 .4099 4207 .4115 .4015 4222 .4131 .4147 ,4162 1.5 .4332 4236 4251 .4177 .4345 4357 .4265 .4279 .4292 4370 4382 .4306 .4394 .4319 .4406 4418 4429 1.6 -4452 4463 .4441 -4474 4484 1.7 4554 4495 -4505 4564 4573 .4515 4525 4582 4591 .4535 .4545 1.8 .4641 4649 4599 4656 .4608 4664 4616 4625 4671 4678 .4633 1.9 .4713 4719 4726 4686 4693 4732 4699 4738 4744 4706 4750 4756 ,4761 .4767