In a 2015 study by the Pew Research Center, it was found that teens go through (send and receive) an average of 67 text messages per day. This has, of course, increased throughout the years, but by ho

In a 2015 study by the Pew Research Center, it was found that teens go through (send and receive) an

average of 67 text messages per day. This has, of course, increased throughout the years, but by how much?

From our earlier random sample of 87 Texas teens, the mean number of texts sent and received was 131.52

texts with a standard deviation of 272.94 texts. Estimate the mean number of texts sent and received by Texas

teens in 2020 with 99% confidence.