For a Sample of 25 Observations Taken from a Normally

question 67

Multiple Choice

For a sample of 25 observations taken from a normally distributed population with standard deviation of 6, a 95% confidence interval estimate for the population mean would require the use of:

• A) t = 2.064.
• B) t = 1.711.
• C) X² = 39.3641.
• D) z = 1.96.

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The ability of an individual to use two languages effectively, often developed through exposure and practice from a young age.

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