State the null hypothesis H0 and the alternative hypothesis H1 . H0: H1: (b) Determine the type of test statistic to use.   ▼(Choose one)   (c) Find the value of the test statistic

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
Based on their records, a hospital claims that the proportion,
p
, of full-term babies born in the community that weigh more than
7
pounds is
47%
. A pediatrician who works with several hospitals in the community would like to verify the hospital's claim. In a random sample of
155
babies born in the community,
88
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 complete the parts below.

Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.)

 

(a) State the null hypothesis
H0
and the alternative hypothesis
H1
.
H0:
H1:
(b) Determine the type of test statistic to use.
  ▼(Choose one)
 
(c) Find the value of the test statistic. (Round to three or more decimal places.)
 
(d) Find the p-value. (Round to three or more decimal places.)
 
(e) Can we reject the claim that the proportion of full-term babies born in the community that weigh more than
7
pounds is
47%
?
 
Yes
 
No
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