Question

A social researcher employs a ratio-level measure to study prejudice toward Arab Americans in the first month after 9/11. The data below represents a set of responses to a series of questions about Arab Americans that is scored from 0 to 100 (100 is extreme prejudice).

Attitudes of 10 College Students toward Arab Americans: Ratio Data

*higher scores indicate greater prejudice against Arab Americans

Student	Score
A	98
B	21
C	95
D	22
E	6
F	96
G	11
H	20
I	15
J	94

What is the standard deviation for the sample? (round to the thousandths is necessary)

Answer 1

Sol Student int Scale (x) Somple meon () (1-x) %-3 5012 - 26.8 2520-041 18.24 | 47.8 99 794/4/5/=/H -25.8 -41.8 22297:84 1665.64 1747024 2323.24 | 1354.24 48.2 -36.8 - 21.8 772184 Jg4 -3208 1615i84 46.2 2134.44 x = 155494 IN=10 Sample meam (*) = 15 x; . 98 +21+95 +22+6 +96 +11++15+gy x = 47.87 Standard deviation of the Sample : 1 (M-52 p= 155396