. For the questions, your report should include the formulated
hypotheses, steps of calculation and formulas, your answers and
conclusions, and the results from Excel.
A retail company has started a new advertising campaign in order
to increase sales. In the past, the mean spending in both the 18–35
and 35+ age groups was at most $70.00. a. Formulate a hypothesis
test to determine if the mean spending has statistically increased
to more than $70.00.
b. After the new advertising...