Data from home sales above, separated into 3 zip codes. 1) For each zip code find: sample size, mean and standard deviation for the price of the homes. 93905 n= X= S= 93906 n= X= S= 93905 2) What do the mean and standard deviations tell you about home prices in the 3 zip codes? 3) For each zip code, find the z-score for a house that costs $800. Would that price be unusual in any of these zip codes? Explain. 93901 X= S= 93906 93901

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12th Edition
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Author:R. David Gustafson, Jeff Hughes
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Chapter8: Sequences, Series, And Probability
Section8.CT: Chapter Test
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Question
Zip Code
93905
93905
93905
93905
93905
93905
93905
93905
93905
93905
93905
93905
93905
93905
405
93905
760
4
93905
630
4
93905 from ho 640 ales above, 3
93905eath ip 749 find: sampl 4
93905
503
3
93905
43908
93906
93906
93906
93906
93906
93906
93906
93906
93906
93906
93906
93906
93906
93906
93906
93906
93906
Price
714
855
598
769
529
795
715
635
989
93901
93901
93901
93901
790
605
800
480
660
799
900
799
640
650
93906 do the 1069
93906
700
93906
819
635
850
840
625
730
728
840
845
785
700
609
739
685
675
565
595
Bedrooms
3
5
3
4
2
5
3
4
6
4
3
5
3
2
3
3
4
6
3
3
2
4
3
4
3
4
4
3
4
4
4
3
2
3
3322
Baths
1
3
3
3
1
3
2
3
3
3
1
3
1
1
3
2
13
abd 3
1
3
3
2
3
3
2
2
2
3
2
3
2
3
3
2
3
3
3
3
2
3
2
2
1
1
Square Feet
821
2658
1638
2607
729
2253
1529
1980
3074
2607
948
2076
1089
863
2255
1353
1442
1837
920
2450
1877
1231
2191
3043
1814
1498
1240
2905
1328
2195
1112
2156
2276
1450
2400
2191
2207
1852
1077
1501
1152
1420
816
1212
Transcribed Image Text:Zip Code 93905 93905 93905 93905 93905 93905 93905 93905 93905 93905 93905 93905 93905 93905 405 93905 760 4 93905 630 4 93905 from ho 640 ales above, 3 93905eath ip 749 find: sampl 4 93905 503 3 93905 43908 93906 93906 93906 93906 93906 93906 93906 93906 93906 93906 93906 93906 93906 93906 93906 93906 93906 Price 714 855 598 769 529 795 715 635 989 93901 93901 93901 93901 790 605 800 480 660 799 900 799 640 650 93906 do the 1069 93906 700 93906 819 635 850 840 625 730 728 840 845 785 700 609 739 685 675 565 595 Bedrooms 3 5 3 4 2 5 3 4 6 4 3 5 3 2 3 3 4 6 3 3 2 4 3 4 3 4 4 3 4 4 4 3 2 3 3322 Baths 1 3 3 3 1 3 2 3 3 3 1 3 1 1 3 2 13 abd 3 1 3 3 2 3 3 2 2 2 3 2 3 2 3 3 2 3 3 3 3 2 3 2 2 1 1 Square Feet 821 2658 1638 2607 729 2253 1529 1980 3074 2607 948 2076 1089 863 2255 1353 1442 1837 920 2450 1877 1231 2191 3043 1814 1498 1240 2905 1328 2195 1112 2156 2276 1450 2400 2191 2207 1852 1077 1501 1152 1420 816 1212
93901
93901
93901
93901
93901
93901
93901
93901
93901
93901
93901
93901
93901
93901
93901
93901
93905
93905
n=
X=
S=
775
549
729
1250
615
699
540
700
675
629
93905
630
700
825
970
690
1050
3
3
4
6
3
3
2
3
4
3
2
3
3
4
3
6
Data from home sales above, separated into 3 zip codes.
1) For each zip code find: sample size, mean and standard deviation for the price of the homes.
93906
n=
X=
S=
2
3
2
5
1
2
2
1
2
2
1
2
2
93906
3
2
3
1184
1553
1320
4349
1664
1024
1602
1530
1851
1151
754
1225
1951
3034
1604
3400
2) What do the mean and standard deviations tell you about home prices in the 3 zip codes?
3) For each zip code, find the z-score for a house that costs $800.
Would that price be unusual in any of these zip codes? Explain.
93901
n=
X=
S=
93901
Transcribed Image Text:93901 93901 93901 93901 93901 93901 93901 93901 93901 93901 93901 93901 93901 93901 93901 93901 93905 93905 n= X= S= 775 549 729 1250 615 699 540 700 675 629 93905 630 700 825 970 690 1050 3 3 4 6 3 3 2 3 4 3 2 3 3 4 3 6 Data from home sales above, separated into 3 zip codes. 1) For each zip code find: sample size, mean and standard deviation for the price of the homes. 93906 n= X= S= 2 3 2 5 1 2 2 1 2 2 1 2 2 93906 3 2 3 1184 1553 1320 4349 1664 1024 1602 1530 1851 1151 754 1225 1951 3034 1604 3400 2) What do the mean and standard deviations tell you about home prices in the 3 zip codes? 3) For each zip code, find the z-score for a house that costs $800. Would that price be unusual in any of these zip codes? Explain. 93901 n= X= S= 93901
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