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  1. E

    Homework Question

    On a side note, would i ise a z score or a t score to calculate this?
  2. E

    Homework Question

    Okay i see what you mean. Thanks a million!
  3. E

    Homework Question

    Hi, I have a homework question that I don't fully understand. It reads like this: The mean weight of antarctic penguins found in a colony last year was 15.4 kg. In a sample of 35 penguins same time this year in the same colony the mean weight was 14.5kg. Assume the population standard deviation...