Final answer:
The upper control limit (UCL x) for a sample size of 36 Honey-Nut Oatmeal boxes is 15.45 ounces.
Step-by-step explanation:
The control limits on an X-bar chart can be calculated using the formula UCL x = μ + 3σ and LCL x = μ - 3σ, where μ is the mean and σ is the standard deviation.
In this case, the mean weight of the Honey-Nut Oatmeal boxes is 15.0 ounces and the standard deviation is 0.15 ounce. To find the upper control limit (UCL x), we need to calculate 3 times the standard deviation and add it to the mean.
UCL x = 15.0 + (3 * 0.15) = 15.45 ounces