In 2000, according to the U.S. Census Bureau, 57% of females aged 15 and older lived alone. A sociologist takes a random sample of 400 females aged
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In 2000, according to the U.S. Census Bureau, 57% of females aged 15 and older lived alone.
A sociologist takes a random sample of 400 females aged 15 and older and finds that 232 are living alone. Is there sufficient evidence at the 0.10 significange level to
conclude the proportion has changed since 2000?
a) Define the unknown population parameter of interest.
O A. p = the proportion of females aged 15 and older that live alone now
O B. p = the number of females aged 15 and older that live alone
O C. u = mean number of femailes aged 15 and older that live alone
O D. p = the porportion of females aged 15 and older that lived alone in 2000
b) Determine the null and alternate hypotheses.
O A. HO: p = 0.57 H1: p &gt; 0.57
O B. HO: p = 0.57 H1: p #0.57
O C. HO: H = 232 H1: u &gt; 232
O D. HO: H = 232 H1: u #232

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