The data below is a random sample of students from high school and the number of text messages sent and received over a two-day period. Some information for the data: sample mean: 43.7333333 sample standard deviation: 38.29857638 and n = 15 0 5 6 6 11 20 28 28 44 73 78 83 90 96 98 a) Check the requirements. Hint: construct a boxplot of the data. Is it appropriate to perform a hypothesis test? b) If appropriate, perform a hypothesis test to determine whether the mean number of text messages sent is less than 44. (Hint: Complete the "State, Do, and Conclude part). Use the α = 0.05 level. c) What would it mean to make a Type I error in this situation? d) What would it mean to make a Type II error?
The data below is a random sample of students from high school and the number of text messages sent and received over a two-day period. Some information for the data:
sample mean: 43.7333333 sample standard deviation: 38.29857638 and n = 15
0 5 6 6 11 20 28 28 44 73 78 83 90 96 98
a) Check the requirements. Hint: construct a boxplot of the data. Is it appropriate to perform a hypothesis test?
b) If appropriate, perform a hypothesis test to determine whether the mean number of text messages sent is less than 44. (Hint: Complete the "State, Do, and Conclude part). Use the α = 0.05 level.
c) What would it mean to make a Type I error in this situation?
d) What would it mean to make a Type II error?
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