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In: Statistics and Probability

Consider the following results for two independent random samples taken from two populations. Sample 1 Sample...

Consider the following results for two independent random samples taken from two populations.

Sample 1 Sample 2
n 1 = 50 n 2 = 35
x 1 = 13.1 x 2 = 11.5
σ 1 = 2.4 σ 2 = 3.2
  1. What is the point estimate of the difference between the two population means? (to 1 decimal)
  2. Provide a 90% confidence interval for the difference between the two population means (to 2 decimals). Use z-table.
    ( ,  )
  3. Provide a 95% confidence interval for the difference between the two population means (to 2 decimals). Use z-table. If your answer is negative, enter minus (-) sign.
    ( ,  )

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orchestra answered 2 years ago
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