Suppose you sample 19 high school baseball pitchers and find that they have an average pitching speed of 87 miles per hour with a standard deviation of 0.98 mph. Find a 95% confidence interval for the average pitching speed of all high school baseball pitchers. Assume that the population is normally distributed.
In: Statistics and Probability
The following is a random sample of the annual salaries of high school counselors in the United States. Assuming that the distribution of salaries is approximately normal, construct a 90% confidence interval for the mean salary of high school counselors across the United States. Round to the nearest dollar.
$55,250, $46,540, $42,120, $58,740, $38,010, $43,650, $65,640
In: Statistics and Probability
Does the West Buffalo Charter School seem most focused on the economic, accounting, or shareholder perspective of its competitive advantage? Give information to support your view.
(Please choose one of these perspectives and explain why a charter school would be focused on this perspective. For example, the charter schools are focused on the _____ perspective because ________.)
In: Operations Management
Many children with elimination problems experience social problems at school as a result of their condition. What recommendations could be made to school personnel to reduce stigmatization and alienation that arises as a result of elimination accidents? What should a teacher do if a child has an accident in class? Would recommendations be different for soiling and wetting problems?
In: Psychology
In: Nursing
It is believed that the women with some education beyond high school (H) are more likely to use contraceptives compared to women with an education level at or below a high school level (L). A study was conducted to test this claim and found out that 201 among 613 low-educated women (L) use contraceptives and 228 out of 848 women with some education beyond high school (H) use contraceptives. Does it appear that better-educated women are more likely to use contraceptives compared to low-educated women? Conduct a test of hypothesis at 5% level of significance. What are the null and alternative hypotheses for the test?
In: Statistics and Probability
I have been getting many incorrect answers recently, if you are unsure please do not attempt. All i ask is all parts answered and with shown or explained work. Thank you (:
The following data represent the math SAT scores for a random sample of seniors from three different high schools.
|
School A |
School B |
School C |
|---|---|---|
|
488 |
445 |
618 |
|
592 |
370 |
525 |
|
537 |
382 |
651 |
|
470 |
423 |
647 |
|
539 |
523 |
543 |
Using α=0.05, perform a hypothesis test to determine if the math median SAT score differs among these three high schools.
In: Statistics and Probability
The average math SAT score is 521 with a standard deviation of 114. A particular high school claims that its students have unusually high math SAT scores. A random sample of 60 students from this school was selected, and the mean math SAT score was 538. Is the high school justified in its claim? Explain.
answers is ( choose yes/or no) , because the z score ( which is? ) is ( choose, usual or not usual) since it ( choose, does not lie ,or lies) within the range of a usual event , namely within ( choose 1, 2 or 3 standard deviations) of the mean of the sample means. round to two decimal places as needed
In: Statistics and Probability
In a secondary school, there are 400 male students and 600 female students. 50% of the male students and 55% of the female students are in senior secondary curriculum, the others are in junior secondary curriculum. The school had appointed 8% of senior male students and 10% of senior female students to be the student leaders. No junior secondary student can be student leader.
(a) If a student is selected at random in the school, find the probability that
(i) the student is a senior student.
(ii) the student is a female student leader.
(b) Suppose a student is selected and known to be NOT a student leader, what is the probability that
(i) the student is a male student.
(ii) the student is a senior female student.
In: Statistics and Probability
While the handbook addressed an overview of positive behavior support at the individual level, there is a wealth of resources and research on the topic of implementing school-wide. Research, from reputable sites and organizations, the salient aspects of positive behavior support school-wide plan and clearly indicate in no less than three well-developed paragraphs. Then write a positive behavior support plan for your future classroom including the salient points. Be sure to indicate how you will recognize positive behavior as well as correcting negative behavior. You may use some creative license in imaging and referencing a school-wide plan.
Class: Characteristics of Exceptional Children
Education
In: Psychology