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Mathematics, 23.05.2020 23:01 shyann78
A study1 conducted in July 2015 examines smartphone ownership by US adults. A random sample of 2001 people were surveyed, and the study shows that 688 of the 989 men own a smartphone and 671 of the 1012 women own a smartphone. We want to test whether the survey results provide evidence of a difference in the proportion owning a smartphone between men and women. Let group 1 be US men and let group 2 be US women.
(a) State the null and alternative hypotheses.
(b) Give the notation for the sample statistic.
(c) Give the value for the sample statistic.
(d) In the sample, which group has higher samartphone ownership: men or women?
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A study1 conducted in July 2015 examines smartphone ownership by US adults. A random sample of 2001...
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