Question

use the results from a survey of a simple random sample of 1181 adults. among the 1181 respondents, 91% rated themselves as above average drivers. we want to test the claim that \frac{17}{20} of adults rate themselves as above average drivers. complete parts (a) through (c).
a. identify the actual number of respondents who rated themselves as above average drivers
1075
(round to the nearest whole number as needed.)
b. identify the sample proportion and use the symbol that represents it.
=
(type an integer or a decimal rounded to two decimal places as needed.)

Explanation:

Step1: Recall the symbol for sample proportion

The symbol for sample proportion is $\hat{p}$.

Step2: Calculate the sample proportion

The sample proportion $\hat{p}$ is given as a percentage in the problem. Convert the percentage to a decimal. $91\%=\frac{91}{100} = 0.91$

Answer:

$\hat{p}=0.91$