A Company Claims That 9 Out of 10 Doctors (I $90 \%$

Multiple Choice

A company claims that 9 out of 10 doctors (i.e., $90 \%$ ) recommend its brand of cough syrup to their patients. To test this claim against the alternative that the actual proportion is less than $90 \%$ , a random sample of 100 doctors was chosen which resulted in 87 who indicate that they recommend this cough syrup. The test statistic in this problem is approximately:

A) $- 1.00$
B) $- 0.50$
C) $- 0.66$
D) $1.00$