In a survey conducted to determine, among other things, the costof vacations, 64 individuals were randomly sampled. Each person wasasked to compute the cost of her or his most recent vacation. Thesample showed a sample mean of $1810. Assuming that the populationstandard deviation ĂŹĆ’ is $600, construct a 90% confidence intervalfor the average cost of all vacations. (Round your final answer to3 decimal places).
