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A company wants to make a lightsaber with the most popular colour in two different locations....

A company wants to make a lightsaber with the most popular colour in two different locations. A random sample of 77 people in Jedha produce 55 who prefer blue; a random sample of 155 people in Coruscant (independent from the first) produces 125 who prefer blue. What are appropriate null and alternative hypotheses to see if the proportion of Coruscant citizens that prefer blue (pC) is higher than the proportion of Jedha citizens that prefer blue (pJ)?

Select one:

a. H0: pC - pJ> 0; HA: pC - pJ ≤ 0

b. H0: pC - pJ = 0; HA: pC - pJ> 0

c. H0: pC - pJ = 0; HA: pC - pJ ≠ 0

d. H0: pC - pJ< 0; HA: pC - pJ≥ 0

e. H0: pC - pJ= 0; HA: pC - pJ< 0

math   Statistics-And-Probability   
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