![subject](/tpl/images/cats/mat.png)
Mathematics, 24.04.2020 23:07 ericgalo808
An article reports the following values for soil heat flux of eight plots covered with coal dust.
36.5, 35.5, 36.5, 35.4, 36.7, 28.0, 18.8, 24.7
The mean soil heat flux for plots covered only with grass is 29.0. Assuming that the heat-flux distribution is approximately normal, does the data suggest that the coal dust is effective in increasing the mean heat flux over that for grass? Test the appropriate hypotheses using α = 0.05.
State the appropriate hypotheses.
A.) H0: μ = 29
B.) Ha: μ < 29 H0: μ = 29
C.) Ha: μ > 29 H0: μ ≠ 29
D.) Ha: μ = 29 H0: μ = 29
E.) Ha: μ ≠ 29
Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.)
t =
P-value =
State the conclusion in the problem context.
Reject the null hypothesis. There is not sufficient evidence to conclude that there was an increase in mean heat flux.
Do not reject the null hypothesis. There is not sufficient evidence to conclude that there was an increase in mean heat flux.
Do not reject the null hypothesis. There is sufficient evidence to conclude that there was an increase in mean heat flux.
Reject the null hypothesis. There is sufficient evidence to conclude that there was an increase in mean heat flux.
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:00
You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:30
In one month jillian made 36 local phone calls and 20 long-distance calls what was her ratio of local calls to long-distance calls for that month?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 05:30
Borat elise said that the expression 2.6 x -1.3 x-4.5 is equivalent to 1.3x -4.5
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 05:30
The trapezoid below has been enlarged by a scale of 1.5. what is the area of the enlarged trapezoid?
Answers: 3
You know the right answer?
An article reports the following values for soil heat flux of eight plots covered with coal dust.
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 04:10
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 20.11.2020 04:10
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 04:10
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 04:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 04:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 20.11.2020 04:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 04:20
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 20.11.2020 04:20
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 20.11.2020 04:20
![question](/tpl/images/cats/fizika.png)