A researcher is interested in finding a 98% confidence interval for the mean number of times per day that college students text. The study included 135 students who averaged 36.9 texts per day. The standard deviation was 22.7 texts. Round answers to 3 decimal places where possible.a. To compute the confidence interval use a ? z t distribution.b. With 98% confidence the population mean number of texts per day is between and texts.c. If many groups of 135 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 not contain the true population mean number of texts per day. A researcher is interested in finding a 98% confidence interval for the mean numberof times per day that college students text. The study included 135 students whoaveraged 36.9 texts per day. The standard deviation was 22.7 texts. Round answersto 3 decimal places where possible.a. To compute the confidence interval use a ? distribution.b. With 98% confidence the population mean number of texts per day is betweenandtexts.c. If many groups of 135 randomly selected members are studied, then a differentconfidence interval would be produced from each group. Aboutpercentof these confidence intervals will contain the true population number of texts perday and aboutpercent will not contain the true population meannumber of texts per day.

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A researcher is interested in finding a 98% confidence interval for the mean number of times per day that college students text. The study included 135 students who averaged 36.9 texts per day. The standard deviation was 22.7 texts. Round answers to 3 decimal places where possible.

a. To compute the confidence interval use a ? z t distribution.

b. With 98% confidence the population mean number of texts per day is between and texts.

c. If many groups of 135 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 not contain the true population mean number of texts per day.

A researcher is interested in finding a 98% confidence interval for the mean number
of times per day that college students text. The study included 135 students who
averaged 36.9 texts per day. The standard deviation was 22.7 texts. Round answers
to 3 decimal places where possible.
a. To compute the confidence interval use a ? distribution.
b. With 98% confidence the population mean number of texts per day is between
and
texts.
c. If many groups of 135 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 not contain the true population mean
number of texts per day.

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