G The unknown Fourier transform of this pair of rectangles must be even and real with area 5 0 and value at the origin 5 2. Note that the rectangles can be formed by the convolution of a single rectangle with a pair of impulses.

Astudy of 80 english composition professors showed that they spent, on average, 14.6 minutes correcting a student's term paper. construct and interpret a 90% confidence interval of the mean time for all composition papers. assume that the population standard deviation is 2.9 minutes. round to 1 decimal.