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STAT 245 (11)

# Rev 2.pdf

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Department
Statistics
Course
STAT 245
Professor
William Laverty
Semester
Winter

Description
Statistics 2453Review Problems for the Final Exam I The following data were collected on n3023persons who suffered a head injury in a motor vehicle accident in SaskatchewanThe variables that were measured for each case were 1 Sex SMale or Female2 Age A 10 1019 20293049 and 50male female 10 247 138 1019 793 458 2029 544 222 3049 249 156 50 235 161a Using a 95 confidence interval estimate the proportion of males who suffered a head injury in a motor vehicle accident in Saskatchewan amongst individuals age 1029 b Repeat the calculation for individuals age 30 c Test to determine if there is a difference in the proportion of males who suffered a head injury in a motor vehicle accident in Saskatchewan between the age groups 1029 and 30 2d Use the ctest to determine if there is a relationship between Sex and agefor individual who suffered a head injury in a motor vehicle accident in SaskatchewanII In a psychiatric study of families of schizophrenic children two Rorshach scores of the mothers M and M and fathersF Fwere of particular importThe observed values 1212of these scores for parents of n10 psychotic adolescents and n6 normal control children 12of similar age and economic status are given belown10 Control Families n6Schizophrenic Families12 M M F F M M F F1212121230 35 25 33 20 15 26 2521 41 15 21 11 3 18 1927 32 25 34 7 2 11 835 34 31 36 21 15 24 2220 37 14 21 15 11 17 1323 38 19 25 13 12 20 1528 27 26 3032 42 29 3726 36 27 3329 35 24 32a Plot box plots of each of the four variables M M F F for both the 1212Schizophrenic Families and the Control Families Page 1
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