Mathematics, 13.12.2019 17:31 mercedesamatap21hx0
The owners of an industrial plant want to determine which of two types of fuel (gas or electricity) will produce more useful energy at a lower cost. the cost is measured by plant investment per delivered quad ($ invested /quadrillion btus). the smaller this number, the less the industrial plant pays for delivered energy. suppose we wish to determine if there is a difference in the average investment/quad between using electricity and using gas. our null and alternative hypotheses would be:
a. h0: (? e - ? g) = 0 vs. ha: (? e - ? g) = 0
b. h0: (? e - ? g) = 0 vs. ha: (? e - ? g) < 0
c. h0: (? e - ? g) = 0 vs. ha: (? e - ? g) > 0
d. h0: (? e - ? g) = 0 vs. ha: (? e - ? g) ? 0
Answers: 3
Mathematics, 21.06.2019 21:30, gigi6653
Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups
Answers: 3
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