What is the forecast for July based on a three-month weighted moving average applied to the following past demand data and using the weights: 6, 4, and 1(largest weight is for most recent data)? Show all the forecasts for April through June along with the answer. 
Definitions:
Group-selection Theory
A controversial hypothesis suggesting that natural selection operates on groups or populations rather than solely on individuals, favoring traits that benefit the group's survival or reproductive success.
Material Benefits
Tangible resources or goods that an individual gains, which can enhance their reproductive success or survival.
Kin-selection Theory
A theory in evolutionary biology suggesting that individuals can pass on their genes by helping relatives to reproduce, not just through their own offspring.
Material Benefits
Tangible rewards or advantages, such as food or shelter, obtained through specific behaviors or interactions.
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