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View Policies Current Attempt in Progress Find the \( z \)-score of the value 96 in a dataset with mean 73 and standard deviation 10 . Interpret the \( z \)-score in terms of number of standard deviations above or below the mean. Give your answers accurate to three decimal places. \( z \)-score \( = \) i This value of 96 is \( \mathbf{i} \)

Ask by Colon Edwards. in the United States
Jan 22,2025

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Answer

The \( z \)-score of 96 is **2.300**, which means it is **2.300 standard deviations above** the mean.

Solution

To find the \( z \)-score of the value 96 in a dataset with a mean (\( \mu \)) of 73 and a standard deviation (\( \sigma \)) of 10, you can use the following formula: \[ z = \frac{X - \mu}{\sigma} \] Where: - \( X \) is the value in question (96), - \( \mu \) is the mean (73), - \( \sigma \) is the standard deviation (10). Plugging in the values: \[ z = \frac{96 - 73}{10} = \frac{23}{10} = 2.300 \] **Interpretation:** A \( z \)-score of **2.300** means that the value 96 is **2.300 standard deviations above** the mean of the dataset. --- **Final Answer:** \( z \)-score \( = \) **2.300** This value of 96 is **2.300 standard deviations above** the mean.

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To find the \( z \)-score, you can use the formula: \[ z = \frac{(X - \mu)}{\sigma} \] where \( X \) is the value in question (96), \( \mu \) is the mean (73), and \( \sigma \) is the standard deviation (10). Plugging in the values: \[ z = \frac{(96 - 73)}{10} = \frac{23}{10} = 2.3 \] So, the \( z \)-score \( = 2.300 \). This value of 96 is \( \mathbf{2.300} \) standard deviations above the mean, indicating that it is significantly higher than the average value in the dataset.

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