In 2012, seventy percent of Canadian households had an internet connection. A sample of 484 households taken in 2013 showed that 75% had an internet connection. We are interested in determining whether or not there has been a significant increase in the percentage of the Canadian households that have internet connections
a. State the null and alternative hypotheses to be tested.
b. Compute the test statistic.
c. The null hypothesis is to be tested at 95% confidence. Determine the critical value(s) for this test.
d. What do you conclude?
a. Ho: p ? 0.70
Ha: p > 0.70
b. Test statistic t = 2.4 (rounded)
c. z = 1.645
d. Reject Ho and conclude that there has been a significant increase.
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