In: Statistics and Probability
a television critic claims that 85 percent of all viewers find the noise level of a certain commercial objectionable. If a random sample of 325 television viewers includes 250 who find the noise level objectionable, test at the .05 level of significance whether there is a significant difference between the sampled proportion and the critics claim
sample size:
Those objecting to noise (x):
sample proportion(p-hat):
hypothesized proportion(p):
the null hypothesis:
alternative hypothesis:
standard error:
test statistics:
appropriate p value:
conclusion: