A researcher is interested in finding a 95 confidence
Last updated: 11/11/2023
![A researcher is interested in finding a 95 confidence](https://media.kunduz.com/media/sug-question-candidate/20231111190927280565-3819153.jpg?h=512)
A researcher is interested in finding a 95 confidence interval for the mean number of times per day that college students text The study included 81 students who averaged 25 9 texts per day The standard deviation was 13 6 texts Round answers to 3 decimal places where possible a To compute the confidence interval which distribution should you use t distribution z distribution b With 95 confidence the population mean number of texts per day is between 22 941 and 28 589 texts c If many groups of 81 randomly selected members are studied then a different confidence interval would be produced from each group About percent of these confidence intervals will contain the true population number of texts per day and about percent will