Question: Can someone help me solve this? Many studies have been conducted to determine the factors that affect happiness. One such study relates happiness with age

Can someone help me solve this?

Many studies have been conducted to determine the factors that affect happiness. One such study relates happiness with age and finds that holding everything else constant, people are least happy when they are in their mid-forties. The data set Happiness shows a person's age and self-report of well-being on a scale of 0 to 100. Use the following regression output to construct a 95% confidence interval for the expected well-being score when someone is 65 years old. Standard Coemcients Error t Stat P-value Intercept 56.17717172 5.214513157 10.77323 3.06147E-10 Age 0.28445534 0.087065391 3.267146 0.003526175 C 0.104 to 0.465 C 70.66 to 78.68 C 65.20 to 84.12 77, 45.36 to 66.99 \f

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