The standard deviation of a normally distributed population is equal to 10. A sample size of 25
Question:
a. Find an 80% confidence interval for m.
b. What would the 80% confidence interval be for a sample of size 100?
c. What would be the 80% confidence interval for a sample of size 25 with a standard deviation of 5 (instead of 10)?
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a Step 1 The mean Step 2 a normality indicated b z 10 c 1 080 Step ...View the full answer
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