'For problems 1-6, a normal distribution has a mean of 30 and a standard deviation of 5. 1. Find the z-score corresponding to X= 25 2. Find the z-score corresponding to x = 42 3. Find the z-score corresponding to X= 33 4. Find the X-value corresponding to z = 1. 5. Find the X-value corresponding to 2 = 22.5 6. Find the X-value corresponding to a z = 0.5'
Added by Christina U.
Step 1
To find the z-score corresponding to X= 25, we use the formula: z = (X - μ) / σ where X is the given value, μ is the mean, and σ is the standard deviation. Substituting the values, we get: z = (25 - 30) / 5 = -1 Therefore, the z-score corresponding to X= 25 Show more…
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