Kids with phones: A marketing manager for a phone company claims that less than 59% of children aged 8-12 have phones. In a survey of 822 children aged 8-12 by a national consumers group, 460 of them had phones. Can you conclude that the manager's claim is true? Use the a=0.01 level of significance and the P-value method with the TI-84 Plus calculator.
a) H0:
H1:
Right-tailed two-tailed or left-tailed test?
b) Compute the value of the test statistic. Round the answer to at least two decimal places.
c) Compute the P-value. Round the answer to at least four decimal places.
d) Determine whether to reject H0.
e) At the a=0.01 level of significance, there (is or is not) enough evidence to conclude that less than 59% of children aged 8-12 have phones.