Proctor & Gamble claims that at least half the bars of Ivory soap they produce are 99.44% pure (or more pure) as advertised. Unilever, one of Proctor & Gamble's competitors, wishes to put this claim to the test. They sample the purity of 127 bars of Ivory soap. They find that 50 of thern meet the 99.44% purity advertised. What type of test should be run? z-test of a proportion Ot-test of a mean The alternative hypothesis indicates a O two-tailed test left-tailed test Oright-tailed test Calculate the p-value. Does Unilever have sufficient evidence to reject Proctor & Gamble's claim? Yes O No
Proctor & Gamble claims that at least half the bars of Ivory soap they produce are 99.44% pure (or more pure) as advertised. Unilever, one of Proctor & Gamble's competitors, wishes to put this claim to the test. They sample the purity of 127 bars of Ivory soap. They find that 50 of thern meet the 99.44% purity advertised. What type of test should be run? z-test of a proportion Ot-test of a mean The alternative hypothesis indicates a O two-tailed test left-tailed test Oright-tailed test Calculate the p-value. Does Unilever have sufficient evidence to reject Proctor & Gamble's claim? Yes O No
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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![Chapter 9 Problem Set IGRAL
X
+
Courses/10177/assignments/2446457module_item_id=747217
Proctor & Gamble claims that at least half the bars of Ivory soap they produce are 99.44% pure (or more
pure) as advertised. Unilever, one of Proctor & Gamble's competitors, wishes to put this claim to the test.
They sample the purity of 127 bars of Ivory soap. They find that 50 of them meet the 99.44% purity
advertised.
What type of test should be run?
Oz-test of a proportion
Ot-test of a mean
The alternative hypothesis indicates a
Otwo-tailed test
Oleft-tailed test
Oright-tailed test
Calculate the p-value..
Does Unilever have sufficient evidence to reject Proctor & Gamble's claim?
O Yes
O No
Question Help: D Post to forum
Submit Question
31
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Transcribed Image Text:Chapter 9 Problem Set IGRAL
X
+
Courses/10177/assignments/2446457module_item_id=747217
Proctor & Gamble claims that at least half the bars of Ivory soap they produce are 99.44% pure (or more
pure) as advertised. Unilever, one of Proctor & Gamble's competitors, wishes to put this claim to the test.
They sample the purity of 127 bars of Ivory soap. They find that 50 of them meet the 99.44% purity
advertised.
What type of test should be run?
Oz-test of a proportion
Ot-test of a mean
The alternative hypothesis indicates a
Otwo-tailed test
Oleft-tailed test
Oright-tailed test
Calculate the p-value..
Does Unilever have sufficient evidence to reject Proctor & Gamble's claim?
O Yes
O No
Question Help: D Post to forum
Submit Question
31
DELL
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