1.For each of the following statements, indicate whether it is True/False. If false, explain why.

I.If the 95% confidence interval for the average purchase of customers at a department store is $50 to $110, then $100 is a plausible value for the population mean at this level of confidence.

II.If the 95% confidence interval for the number of moviegoers who purchase concessions is 30% to 45%, this means that fewer than half of all moviegoers purchase concessions.

III.The 95% Confidence-Interval for only applies if the sample data are nearly normally distributed.

2.In January 2005, a company that monitors Internet traffic (WebSideStory) reported that its sampling revealed that the Mozilla Firefox browser launched in 2004 had grabbed a 4.6% share of the market.

I.If the sample were based on 2,000 users, could Microsoft conclude that Mozilla has a less than 5% share of the market?

II.WebSideStory claims that its sample includes all the daily Internet users. If that's the case, then can Microsoft conclude that Mozilla has a less than 5% share of the market?