A grocery store manager is interested in testing the claim that banana is the favorite fruit for more than 50% of the adults. Th
e manager conducted a survey on a random sample of 100 adults. The survey showed that 56 adults in the sample chose banana as his/her favorite fruit. Assume the manager wants to use a 0.05 significance level to test the claim.
1 answer:
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Answer:
a) 15/29
Explanation:
The fraction in which the olive oil must be added = 5 / 8
Vinegar's fraction = 1 / 4
The remainder is = = 1 / 8
Salt, pepper and sugar are mixed evenly. SO,
Salt's fraction = Pepper's fraction = Sugar's fraction = 1 / 24
Thus, New recipe contains:
Olive oil's fraction = 5 / 8
He doubles the vinegar, So, Vinegar's fraction = 1 / 2
He missed sugar, so left ones are salt and pepper which are:
Salt's fraction = Pepper's fraction = 1 / 24
Total = (5 / 8) + (1 / 2) + (1 / 24) + (1 / 24) = 29 / 24
Olive oil's proportion = = 15 / 29