In: Statistics and Probability
Calculate the test statistic. A research company claims that no more than 55% of Americans regularly watch FOX News. You decide to test this claim and ask a random sample of 425 Americans if they watch this network regularly. Of the 425 sampled, 255 respond yes. Calculate the test statistic for the hypothesis test. a) -2.07 b) 1.645 c) -1.96 d) 2.07 e) None of the above.
We have for given example,
Population proportion value is =0.55
x=255
n=425
Estimate for sample proportion =0.6
Z test statistic formula for proportion
=2.07
d) 2.07 |