Ask questions and get helpful responses.
Ask a New Question
  1. Questions

math

A researcher predicts that listening to music while solving math problems will make a particular brain area more active. To test this, a research participant has her brain scanned while listening to music and solving math problems, and the brain area of interest has a percentage signal change of 58. From many previous studies with this same math problems procedure (but not listening to music), it is known that the signal change in this brain area is normally distributed with a mean of 35 and a standard deviation of 10. (a) Using the .01 level, what should the researcher conclude? Solve this problem explicitly using all five steps of hypothesis testing, and illustrate your answer with a sketch showing the comparison distribution, the cutoff (or cutoffs), and the score of the sample on this distribution. (b) Then explain your answer to someone who has never had a course in statistics (but who is familiar with mean, standard deviation, and Z scores).

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Donna

  1. Z = (score-mean)/SD

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

    Decide whether you are doing a one-tailed or two-tailed test.

    I'll leave the explanation up to you. If you can explain any concept clearly to someone else, you will really understand it.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    PsyDAG

Respond to this Question

First Name

Your Response

Similar Questions

  1. English

    1. He is listening to music with headphones. 2. He is listening to music with a headphone. 3. He is listening to music with headsets. 4. He is listening to music with a headset. 5. He is listening to music with headset. (Which

  2. Communication Class

    1.Which of the following is NOT a key listening skills A. Remembering B. Responding C. Repeating D. Evaluating********* 2. Which of the following is true of listening A. It is a biological process B. It is a Voluntary process C.

  3. correction 2

    Listening to music devices at school has negative stuff, but also postive stuff..... i will have add more and make it look like a complete organized sentence but what can i say instead of stuff. How about: Listening to music

  4. algebra

    I have a few math questions I made them just like my actual problems so that I can go through the steps you have went through to answer my own problems...Again THESE ARE NOT THE REAL PROBLEMS JUST EXAMPLES LIKE MINE WITH DIFFERENT

  1. math

    So I've been having trouble solving some problems. Mainly problems that look like this 5-(t+3)=-1+2(t-3) what causes problems is the 5- part. I asked my teacher for help, and he gave me a hint, which is to distribute a -1 like

  2. Math

    Kin has finished eight of the ten math problems. Phil has finished 2/5 of the math problems. How much more of the math has Kim finished?

  3. Math

    I am having problems understanding how to solve problems like the following: a2 + b2 = c2 Please help me where I can understand solving problems such as the one above.

  4. English

    Which class are you in? 1. I'm in class 1-2. (I am a member of Calss 1-2. In the classroom, there are 30 students.) 2. I'm in math class. (I'm listening to the math teacher. It's time for studying math.) ==================== What

  1. Mathematics

    A scatterplot has TWO data points for each individual in the data set, one data point for each variable that was measured. (True or False) What combination of variables could you analyze using correlation? A.religious

  2. statistics

    The researcher in exercise 2 decides to conduct the same study using a within- participants design to control for differences in cognitive ability. He selects a random sample of subjects and has them study different material of

  3. AV Tech (script)

    I have to write a script and make a recording about the present past or future. I choose future. Would this be a good script I just need some few opinions. We have to make a powerpoint or video while our voice is recording. It has

  4. Early Child Care

    All of the following statements about the brain are correct EXCEPT: A) the brain is strongly run by patterns rather than facts. B) the brain runs better when food intake is irregular. C) stress and threat effect the brain in many

Still need help? You can ask a new question.