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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

The table contains the percentage of woman receiving prenatal care for a sample of countries. Estimate
the average percentage of woman receiving prenatal care using a 90% confidence interval. Round to two
decimal places.
Percentage of Woman Receiving Prenatal Care
93
95.51 96.87 86.35 91.13
98.79 97.57 82.48 91.74 88.23
91.13 97.25 95.45
88.05 92.13 89.89
81.58 86.27
100
98.69 97.64 91.51
88
92.65
92.69
93.14
100 86.67 98.08
88.17
90.79
83.36 90.73
91.61 97.44
95.96 86.21 79.27 92.13
89.74
100 84.42 92.48
With
prenatal care is between
94.76
90.04
100
87.55
% confidence, it can said that the average percentage of woman receiving
an

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The owner of the AGT Gas Station wishes to determine the fraction of customers who pay using a credit card or debit card. A random sample of 100 customers was surveyed and finds that 80 paid using their credit card or debit card. If you are going to construct a 99% confidence interval for the fraction of customers who paid using their credit card or debit card, what will be the value of the margin of error? a. 0.0658 b. 0.103 c. 0.0784 d. 0.0299
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