Given the following values of x?, s, and n, form a 90% confidence interval for ?². a. x? = 24, s = 2.8, n = 70 b. x? = 0.8, s = 0.06, n = 17 c. x? = 168, s = 31.3, n = 25 d. x? = 9.7, s = 1.7, n = 4
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For this case, we have x = 24, S = 2.8, and n = 70. To form a 90% confidence interval for μ, we can use the formula: CI = x ± Z * (S/√n) where Z is the z-score corresponding to the desired confidence level. For a 90% confidence level, the z-score is Show more…
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