Answer:
The answer is 21 if you use PEMDAS.
Answer:
b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.
Step-by-step explanation:
Given that in a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week. The mean of the sample observations was 12.9 hours.
(Right tailed test at 5% level)
Mean difference = 0.2
Std error =
Z statistic = 1.0540
p value = 0.145941
since p >alpha we do not reject H0.
b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.
You keep getting 79 because that's the answer silly!
The domain and the range of a graph are the set of input and output values on the graph
- The domain of the graph is [-3,2)
- The range of the graph is (-5,4)
<h3>How to determine the domain</h3>
On the graph, the x values starts at x = -3 (with a closed circle), and it ends at x = 2 (with an open circle)
This means that, the domain of the graph is [-3,2)
<h3>How to determine the domain</h3>
On the graph, the y values starts at y = -5, and it ends at y = 4 (with an open circle)
This means that, the range of the graph is (-5,4)
Read more about domain and range at:
brainly.com/question/2264373
4. 19
5. A. 105.7
By the way, if you're struggling with math problems I recommend you khan academy
Hope this helps :)