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i need help For her dissertation, Maria wants to estimate the average number of hours per week that all children aged 10 to 12 years

i need help

For her dissertation, Maria wants to estimate the average number of hours per week that all children aged 10 to 12 years old in her state spendinfront of a computer screen. Maria randomly surveys 250 children aged 10 to 12 years old across her state and calculates an average of 17.4 hours of computer screen time per week for these children.Describe the variable of interest.

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