The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 66, find the probability of a sample mean being less than 19.5 if µ = 20 and o = 1.22. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table.
The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 66, find the probability of a sample mean being less than 19.5 if µ = 20 and o = 1.22. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Problem 1P
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
Transcribed Image Text:The population mean and standard deviation are given below. Find the required probability and
determine whether the given sample mean would be considered unusual.
For a sample of n = 66, find the probability of a sample mean being less than 19.5 if µ = 20 and
o = 1.22.
Click the icon to view page 1 of the standard normal table.
Click the icon to view page 2 of the standard normal table.

Transcribed Image Text:z
.00
.01
.02
.03
.04
.05
.06
.07
0.0
.5000
.5040
5080
.5120 5160 5199 .5239
5279
0.1
.5517 .5557 .5596
.5636 .5675
0.2
.5398 .5438 5478
.5793 5832 .5871 .5910 .5948 5987 .6026 .6064
.6179 .6217
0.3
.6255
.6368
.6406
.6443
0.4
.6736 .6772
.6808
0.5
.6293 .6331
.6554 .6591 .6628 .6664 .6700
.6915 .6950 .6985 .7019 .7054 .7088
.7257 .7291 .7324 .7357 .7389 .7422
.7642 .7673 .7704 .7734 .7764
7123
.7157
0.6
7454
.7486
0.7
.7580
.7611
.7794
0.8 .7881
.7910
.7939
7967 .7995
.8023
.8051
.8078
0.9
.8159
.8186 .8212
8238 .8264
.8289 .8315
.8340
1.0
8413
.8438 .8461 8485
8508
.8531
8554
.8577
1.1
.8643
.8665 .8686
.8708
.8729
.8749 .8770
.8790
1.2
.8849
8869 .8888
.8907 .8925 .8944
.8962
.8980
1.3
.9032
.9049 .9066
.9082
.9099
9115 .9131 .9147
1.4
.9236 .9251
.9265
.9279
.9292
1.5
.9192 .9207 .9222
.9345 .9357 .9370
.9463 .9474 .9484
.9332
.9382
.9394 .9406
.9418
1.6
.9452
.9495
.9505 .9515
.9525
1.7
.9554
.9564 9573
.9582 .9591 .9599 .9608
.9616
1.8
.9641
.9649 .9656
.9664 .9671
9678
.9686
.9693
1.9
.9713
.9719 9726
.9732
.9738
.9744
.9750
.9756
2.0
.9772 .9778
.9783
.9788
.9793
.9798
.9803
.9808
2.1
.9821 .9826
.9830
.9834 .9838 .9842
.9846
9850
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