![subject](/tpl/images/cats/mat.png)
Mathematics, 11.12.2019 21:31 angelinaranee15
The department of public safety has an old memo stating that the number of accidents per week at a hazardous intersection varies according to a normal distribution, with a mean of 2.2 and a standard deviation of 1.4. department officials implemented a new safety plan, heavier police patrols and new signs, to see if they could reduce the average number of accidents at this intersection. they recorded the number of accidents per week for 52 weeks. they find that the average over that period was two accidents per week. what is the p ‑value for the test of h 0 : μ = 2.2 against h a : μ < 2.2 ?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30
The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:30
Answer each of the questions for the following diagram: 1. what type of angles are these? 2. solve for x. what does x equal? 3. what is the measure of the angles?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:10
2. (09.01 lc) a function is shown in the table. x g(x) −3 17 −1 −3 0 −4 2 13 which of the following is a true statement for this function? (5 points) the function is increasing from x = −3 to x = −1. the function is increasing from x = −1 to x = 0. the function is decreasing from x = 0 to x = 2. the function is decreasing from x = −3 to x = −1.
Answers: 3
You know the right answer?
The department of public safety has an old memo stating that the number of accidents per week at a h...
Questions
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2021 15:20
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 08.10.2021 15:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 08.10.2021 15:20
![question](/tpl/images/cats/health.png)
Health, 08.10.2021 15:20
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2021 15:20
![question](/tpl/images/cats/istoriya.png)
History, 08.10.2021 15:20
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2021 15:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
Spanish, 08.10.2021 15:20
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 08.10.2021 15:20
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 08.10.2021 15:20