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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

Section10.1: Measures Of Center

Problem 4GP

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Question

6. An automatic Coffee
dispenser is advertised to
pour u=16 oz of coffee
with a standard
deviation of o-0.1 oz.
An unsatisfied customer
wants to know if the
automatic Coffee
dispenser pours less than
16 oz on average. A
random sample of n=49
cups of coffee is taken
and is found to have a
sample mean x = 15.96
oz. Use a a-5% level of
significance to test if the
population mean u is
less than 16 oz.
a) State the null and
alternate hypothesis.
b) Find the test statistic
(either z or t).
c) Find the p-value or
sketch the critical
region.
d) State whether you
will reject or fail to
reject the null

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