simple random sample of 25 observations is derived from a normally distributed population with a known standard deviation of 8.2. Use Table 1. a. Is the condition that formula76.mml is normally distributed satisfied? Yes No b. Compute the margin of error with 80% confidence. (Round intermediate calculations to 4 decimal places, "z-value" and final answer to 2 decimal places.) Margin of error 2.0992 c. Compute the margin of error with 90% confidence.(Round intermediate calculations to 4 decimal places, "z-value" and final answer to 2 decimal places.) Margin of error d. Which of the two margins of error will lead to a wider interval? The margin of error with 90% confidence. The margin of error with 80% confidence.
