Question
The research department at the home office of New Hampshire Insurance conducts ongoing research on the causes of automobile accidents, the characteristics of the drivers,
The research department at the home office of New Hampshire Insurance conducts ongoing research on the causes of automobile accidents, the characteristics of the drivers, and so on. A random sample of 400 policies written on single persons revealed 120 had at least one accident in the previous three-year period. Similarly, a sample of 600 policies written on married persons revealed that 150 had been in at least one accident.
At the 0.05 significance level, is there a significant difference in the proportions of single and married persons having an accident during a three-year period? Determine thep-value.Hint: For the calculations, assume the single personsas the first sample.
a.State the decision rule.(Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.) Choose the correct word and fill in the blank for the interval plot.
H0 is rejected if z (outside, inside) the interval (_____,_____)
b.Compute the pooled proportion.(Round your answer to 2 decimal places.)
c.Compute the value of the test statistic.(Round your answer to 2 decimal places.)
d.Compute thep-value.(Round your answer to 4 decimal places.)
e.What is your decision regarding the null hypothesis?
A) Reject H0
B) Do not reject H0
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