Question: Hello, I need help with the following question, I would appreciate an explanation on how to solve them with the answers. thank you Students in

Hello, I need help with the following question, I would appreciate an explanation on how to solve them with the answers. thank you

Students in a large economics class rated the class from a scale of 1 to 5. A random sample of ten ratings provided the following values

3, 3, 4, 3, 5, 2, 4, 4, 4, 5

  1. Find the sample mean, variance and standard deviation. Also find the sample proportion of ratings higher than 3
  2. For what population quantities have estimates based on unbiased estimation procedures been found in part A
  3. Using an unbiased estimation procedure, find a point estimate of the variance of the sample mean

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