![subject](/tpl/images/cats/mat.png)
Mathematics, 26.12.2019 05:31 kadenbaker4788
Scores for men on the verbal portion of the sat-i test are normally distributed with a mean of 509 and a standard deviation of 112 .
(a) if 1 man is randomly selected, find the probability that his score is at least 587 .
(b) if 20 men are randomly selected, find the probability that their mean score is at least 587 .
20 randomly selected men were given a review course before taking the sat test. if their mean score is 587 , is there a strong evidence to support the claim that the course is actually effective?
(enter yes or no)
![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)
Mathematics, 21.06.2019 15:30
Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00
Which point lies on a circle with a radius of 5 units and center at p(6, 1)?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30
Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap
Answers: 1
You know the right answer?
Scores for men on the verbal portion of the sat-i test are normally distributed with a mean of 509 a...
Questions
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 10.03.2020 08:53
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2020 08:53
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2020 08:54
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 10.03.2020 08:54
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 10.03.2020 08:54
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)