Carla is ordering pizzas for delivery. Each pizza costs $8 , and there is a $6 delivery charge per order.
2 answers:
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Using the Central Limit Theorem, it is found that:
The sampling distribution is slightly right skewed, with mean of RM 10 and standard deviation of RM 0.5.
The<em> Central Limit Theorem</em> establishes that, for a normally distributed random variable X, with mean and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
- For a skewed variable, if the sample size is at least 30, the shape is approximately normal, otherwise it still is skewed.
In this problem, the mean is of 10 and the standard deviation is of 2.50, hence
Sample of 25, hence
Since the underlying distribution is skewed and the sample size is less than 30, the shape of the sampling distribution is slightly right skewed.
The sampling distribution is slightly right skewed, with mean of RM 10 and standard deviation of RM 0.5.
A similar problem is given at brainly.com/question/25817309