Mathematics, 23.11.2019 05:31, elliswilliams6035
In a rural area, only about 30% of the wells that are drilled find adequate water at a depth of 100 feet or less. a local man claims to be able to find water by "dowsing"—using a forked stick to indicate where the well should be drilled. you check with 80 of his customers and find that 27 have wells less than 100 feet deep. what do you conclude about his claim?
a) write appropriate hypotheses.
b) check the necessary assumptions.
c) perform the mechanics of the test. what is the p-value?
d) explain carefully what the p-value means in context. e) what’s your conclusion?
Answers: 3
Mathematics, 21.06.2019 16:00, isabellemaine
Martin likes to make flower bouquets that have 3 daffodils and 4 tulips per vase. a daffodil has a mass of d grams, a tulip has a mass of t grams, and the vase has a mass of u grams. the expression 5(3d + 4t + v) describes the mass of 5 bouquets. match each amount in the situation with the expression that represents it. situation expression number of bouquets mass of one bouquet mass of the tulips in one bouquet 4t mass of the daffodils in one bouquet 3d + 4t + v
Answers: 2
Mathematics, 21.06.2019 16:30, mildredelizam
Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?
Answers: 3
Mathematics, 21.06.2019 18:00, kellysmith45
The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second
Answers: 3
In a rural area, only about 30% of the wells that are drilled find adequate water at a depth of 100...
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