Lina is analyzing data from a national survey of a sample of the population who regularly uses the Internet. She finds that the z-score for the percentage of Internet users in her home town is -1 . Assuming that the data have a normal distribution, Lina can make which of the following conclusions?
a. The percentage of users in Lina's town is higher than it is in 90% of the othertowns in the
study.
b. The percentage of users In Lina's town is higher than it is in 50% of the othertowns in the study
c. The percentage of users in Lina's town is lower than it is in 50% of the othertowns in the study.
d. The percentage of users in Lina's town is lower than it is in 90% of the othertowns in the study.
c
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