A hospital claims that the proportion, p, of full-term
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A hospital claims that the proportion, p, of full-term babies born in their hospital that weigh more than 7 pounds is 35%. In a random sample of 160 babies born
in this hospital, 54 weighed over 7 pounds. Is there enough evidence to reject the hospital's claim at the 0.05 level of significance?
Perform a two-tailed test. Then fill in the table below.
Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.)
The null hypothesis:
H, : 0
The alternative hypothesis:
H, :
The type of test statistic:
(Choose one)
D>O
The value of the test statistic:
(Round to at least three
decimal places.)
The two critical values at the
0.05 level of significance:
and |
(Round to at least three
decimal places.)
Can we reject the claim that the proportion of full-
term babies born in their hospital that weigh more
Yes
No
than 7 pounds is 35%?
a.
