Politicians are interested in knowing the opinions of their constituents on important issues. One administrative assistant to a senator claims that more than 63% of adult women favor stricter gun laws. A recent telephone survey of 1026 adults by IBR Polls found that 65.9% of adult women favored stricter gun laws. Test the claim that significantly more than 63% of adult women favor stricter gun laws. Use a 5% significance level.
How many standard deviations is the sample proportion above/below the population proportion? Choose the best answer from below.
A) 1.45
B) 0.75
C) 2.12
D) 1.92
40 answers