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...

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 63 of them meet the 99.44% purity advertised.


What type of test should be run?

The alternative hypothesis indicates a

Calculate the p-value.


Does Unilever have sufficient evidence to reject Proctor & Gamble's claim?