Question: 37
(Choose 1 answer)
(See picture)
A. (0.91, 5.49)
B. (-4.65, 11.05)
C. (-3.33, 9.73)
D. (1.29, 5.11)
A researcher was interested in comparing the amount of time spent
watching television by women and men. Independent simple random
samples of 20 women and 17 men were selected, and each person was
asked how many hours he or she had watched television during the
previous week. The sample statistics are given below
women
x=12.5
$1 = 3.6
n1 = 20
men
x2=9.3
$2=3.2
n2 = 17
Assume that the variances are equal, construct a 95% confidence interval
for the difference in population mean time spent watching television
between women and men.
Let to.025 2.03 (for 35 degrees of freedom)
to.05 1.69 (for 35 degrees of freedom).
