Question

An airline's public relations department claims that when luggage is lost, 88% is recovered and delivered to its owner within 24 hours. A consumer group who surveyed a large number of air travelers found that 138 out of 160 people who lost luggage on that airline were reunited with the missing items by the next day. At the 0.10 level of significance, do the data provide sufficient evidence to conclude that the proportion of times that luggage is returned within 24 hours is less than 0. 88? Identify the hypothesis statements you would use to test this. H0: p = 0.88 versus HA : p < 0.88 H0: p < 0.88 versus HA : p = 0.88 H0: p = 0.863 versus HA : p < 0.863

          An airline's public relations department claims that when
luggage is lost, 88% is recovered and delivered to its owner within
24 hours. A consumer group who surveyed a large number of air
travelers found that 138 out of 160 people who lost luggage on that
airline were reunited with the missing items by the next day. At
the 0.10 level of significance, do the data provide sufficient
evidence to conclude that the proportion of times that luggage is
returned within 24 hours is less than 0. 88?
Identify the hypothesis statements you would use to test
this.
H0:  p = 0.88
versus  HA : p < 0.88
H0:  p < 0.88
versus  HA : p = 0.88
H0:  p = 0.863
versus  HA : p < 0.863

Added by Lindsey G.

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