Statics

posted by .

An apple grower is trying to produce larger fruit by using a new fertilizer. The usual fertilizer produces fruit with a mean diameter of 8.7 cm. Two new fertilizer brands are under consideration, with the following experimental results:
BRAND A: n = 10, mean = 9.5 cm, s = 4 cm BRAND B: n = 10, mean = 10.8 cm, s = 3 cm
Calculate the 98% confidence interval for the true difference between the means of the two brands. [5]
Do you think that Brand B is significantly better than Brand A?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    Complete in Metric Conversions: A 12 food wide fertilizer spreader drops 45 pounds of fertilizer while traveling 625 feet. What is the fertilizer application rate in pounds/acre?
  2. math

    A 12 food wide fertilizer spreader drops 45 pounds of fertilizer while traveling 625 feet. What is the fertilizer application rate in pounds/acre?
  3. linear algebra

    in order to grow a certain crop, it is recommended that each square foot of ground be treated with 10 units of phosphorous, 9 units of potassium, and 19 units of nitrogen, suppose that there are three brands of fertilizer on the market …
  4. Quantitative Business Analysis

    John uses a liquid fertilizer to grow flowers in his back room. His fertilizer tank has a capacity of 5 gallons and currently contains 3 gallons of fertilizer which is 10% nitrogen. If he wants to change his fertilizer to 15% nitrogen, …
  5. Science

    A scientist is testing the effects of fertilizer on peanut production. He plants 4 peanut plants and applies a different amount of fertilizer to each plant. Two of the plants die. Can he conclude that the amounts of fertilizer used …
  6. Science

    A farmer wants to determine if a new fertilizer gives her a better crop yield than her old fertilizer. She spreads the old fertilizer in field A, which has a brand new irrigation system. She spreads the new fertilizer in field B, which …
  7. math

    Researchers treat 100 tomato plants with varying amounts of an experimental fertilizer. For each plant, the yield in pounds of tomatoes and the amount of fertilizer applied in ounces are recorded. Which of the following is appropriate …
  8. Science

    A farmer wants to determine if a new fertilizer gives her a better crop yield than her old fertilizer. She spreads the old fertilizer in field A, which has a brand new irrigation system. She spreads the new fertilizer in field B, which …
  9. math

    mrs. lemeke has 10 2/3 ounces of fertilizer . she plans to use 3/4 ounce of fertilizer on each plant. After she puts fertilizer on as many plants as she can, how much fertilizer will be left over?
  10. Math

    mr frank has 1.03 kilograms of fertilizer for the plants in his nursery.he wants every plant to get 95 mg of fertilizer 4 times each year.what is the number of plants he could fertilize with that amount?

More Similar Questions