AP Statistics

How would I go about solving these problems?

In Exercise 9 we suggested the model N(1152,84) for weights in pounds of yearling Angus steers. What weight would you consider to be unusually low for such an animal? Explain.

If you are given the model N(1152,84),what are the cutoff values for the middle 40% of the weights?

  1. 👍
  2. 👎
  3. 👁
  1. I assume that you are talking about a normal distribution with a mean of 1152 and standard deviation of 84.

    A Z score is the score in terms of standard deviations (SD), with -2 SD usually being considered low.

    Z = (x - ƒÊ)/SD, where x = weight value and ƒÊ = mean. Solve for the unknown, once you find the Z score

    The middle 40% is ƒÊ �} 20%.

    Look up the various Z score values in the table in the back of your statistics booklabeled something like "areas under the normal distribution."

    I hope this helps. Thanks for asking.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Health--Check my answers

    1. The best way to describe fitness is: being slim and low in body fat being big, strong, and “buffed” being flexible and having a sense of overall well-being *** all of the above 2. The best way to describe wellness is:

  2. English

    1. I am into sports. (What is the meaning of this sentence?) 2. Exercise is good for the health. 2-1. Exercise is good for health. 2-2. Exercise is good for your health. 2-3. Exercise does good for people. (Are all correct?) 3.

  3. math

    A student missed 71 problems on a biology test and received a grade of 22%. If all the problems were of equal value, how many problems were on the test? Follow the problem-solving process and round your answer to the nearest

  4. pre-cal... compound interest and modeling data

    Please help me with these 2 problems! 1. Complete the table for the time t necessary for P dollars to triple if interest is compounded continuously at rate r. r= 2%, t=? r= 4%, t=? r= 6%. t=? r= 8%, t=? r= 10%, t=? r= 12%, t=? 2.

  1. Science

    1. Which of the following best explains what an Engineer does? A- An engineer combines the knowledge with problem-solving skills to design better mathematical models. B-An engineer combines the knowledge with problem-solving

  2. biology

    On a television talk show, a guest claims that people who exercise vigorously for 15 minutes or more every day are able to solve math problems more rapidly than people who have no vigorous exercise in their daily routine. Describe

  3. science

    Rutherford used his gold foil experiment as evidence for a new atomic model. He suggested that the atom contained a small positively charged nulceus surrounded by a large void filled with only a few electrons orbiting the nucleus.

  4. math

    Divide 7/24 by 35/48 and reduce the quotient to the lowest fraction. A. 245/1152 B. 4/10 C. 2/5 D. 42/48

  1. SAT Essay

    Assignment: Should people take more responsibility for solving problems that affects their communities or the nation in general? Plan and write an essay in which you develop your point of view in this issue. Support your problems

  2. science

    Consider the scenario. Scientists have developed a computer program that can be used to predict when volcanoes will erupt. What type of scientific model is this? mathematical model conceptual model practical model physical model I

  3. Health

    How might regular cardiorespiratory exercise affect hypertension? A. Hypertension may be accelerated with cardiorespiratory exercise. B. Hypertension isn't affected by cardiorespiratory exercise. C. People with hypertension

  4. Math

    Write a story problem that can be represented with 1152÷24

You can view more similar questions or ask a new question.