ased 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 39%. A ediatrician 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, 55 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 Ho and the alternative hypothesis H₁. H₁ :O H₁ :0 (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.) 0 (e) Can we reject the claim that the proportion of full-term babies born in the community that weigh more than 7 pounds is 39%? O Yes O No μ X 9 0#0 O X S 0=0 Oso 2 OO

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 39%. 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, 55 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 Ho and the alternative hypothesis H₁.
H :O
H₁ :0
(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 39%?
O Yes O No
3.
X
0=0
a
X
S
OSO
Р
P
020
0#0 0<0 ☐>0
3
Transcribed Image Text: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 39%. 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, 55 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 Ho and the alternative hypothesis H₁. H :O H₁ :0 (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 39%? O Yes O No 3. X 0=0 a X S OSO Р P 020 0#0 0<0 ☐>0 3
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