In: Statistics and Probability
The average amount of time boys and girls aged 7 to 11 spend
playing sports each day is believed to
be the same. A study is done and data are collected, resulting in
the data in the following table.
Sample Size |
Average Number of Hours Playing Sports per day |
Sample Standard Deviation |
|
Girls | 9 | 2 | 0.866 |
Boys | 16 | 3.2 | 1.00 |
a. Define the appropriate parameter(s) and state the hypotheses for testing if this study provides evidence that the mean amount of time boys and girls aged 7 to 11 play sports each day differs.
b. Set each of the hypotheses equal to zero and find the null
value.a. Define the appropriate parameter(s) and state the
hypotheses for testing if this study
provides evidence that the mean amount of time boys and girls aged
7 to 11 play sports each day
differs.