Suppose that X is a normal random variable with mean 48.5 and standard deviation = 6.8. Let denote the variable for the process of taking a random sample and calculating the sample mean (We called...


Suppose that X is a normal random<br>variable with mean<br>48.5 and standard deviation<br>=<br>6.8. Let<br>denote the variable for the process of<br>taking a random sample and calculating<br>the sample mean (We called this the<br>sampling distribution of the sample<br>mean). Suppose that the sample size is<br>22. Calculate the Z-score associated<br>with observing a sample mean of<br>51.4. Enter your answer to two<br>decimal places. Hint: Use the formula<br>to compute the Z-score<br>x - HX<br>

Extracted text: Suppose that X is a normal random variable with mean 48.5 and standard deviation = 6.8. Let denote the variable for the process of taking a random sample and calculating the sample mean (We called this the sampling distribution of the sample mean). Suppose that the sample size is 22. Calculate the Z-score associated with observing a sample mean of 51.4. Enter your answer to two decimal places. Hint: Use the formula to compute the Z-score x - HX

Jun 11, 2022
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