+ Reply to Thread
Results 1 to 1 of 1

Thread: hellllp!!

  1. #1
    Points: 2,538, Level: 30
    Level completed: 59%, Points required for next Level: 62

    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Exclamation hellllp!!




    I have this problem:

    Twenty students randomly assigned to an experimental group receive an instructional program: 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test (with an estimated population standard deviation of 3); the control group has a mean of 35 (with an estimated population standard deviation of 5).

    Using the .05 level, what should the experimenter conclude? Restate the question as a research hypothesis and a null hypothesis about the population. Should the experimenter accept or reject the null hypothesis? Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.

    I have to use Excel to place in the answers. Can anyone please help me! This is due in a few hours and I am completely lost. p.s. I have posted this with an attachment of the excel sheet.

    Thanks.
    Attached Files

+ Reply to Thread

           




Similar Threads

  1. HELLLLP!!! ranking/rating stats help needed :(
    By jobdone2000 in forum Statistics
    Replies: 0
    Last Post: 04-23-2009, 01:11 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats