According to Gartner Inc., the largest share of the worldwide PC market is held by Hewlett-Packard with 19.8%. Suppose t
Posted: Mon Apr 11, 2022 6:21 am
According to Gartner Inc., the largest share of the worldwide PC
market is held by Hewlett-Packard with 19.8%. Suppose that a market
researcher believes that Hewlett-Packard holds a higher share of
the market in Ontario. To verify this theory, he randomly
selects 427 people who purchased a personal computer in
the last month in Ontario. Ninety of these purchases were
Hewlett-Packard computers. Using a 1% level of significance, test
the market researcher’s theory. If the market share is really 0.22
in Ontario, what is the probability of making a Type II
error?
market is held by Hewlett-Packard with 19.8%. Suppose that a market
researcher believes that Hewlett-Packard holds a higher share of
the market in Ontario. To verify this theory, he randomly
selects 427 people who purchased a personal computer in
the last month in Ontario. Ninety of these purchases were
Hewlett-Packard computers. Using a 1% level of significance, test
the market researcher’s theory. If the market share is really 0.22
in Ontario, what is the probability of making a Type II
error?