In December​ 2004, 44​% of students in high school were satisfied with the lunches supplied through the school. In May​ 2010, an organization conducted a poll of 766 students in high school and asked if they were satisfied with the lunches supplied through the school. Of the 766 ​surveyed, 299 indicated they were satisfied. Does this suggest the proportion of students satisfied with the quality of lunches has​ decreased? ​(a) What does it mean to make a Type II error for this​ test? ​(b) If the researcher decides to test this hypothesis at the alpha=0.10 level of​ significance, compute the probability of making a Type II​ error, beta​, if the true population proportion is 0.39. What is the power of the​ test? ​(c) Redo part​ (b) if the true population proportion is 0.43.

In December​ 2004, 54​% of students in high school were satisfied with the lunches supplied through the school. In May​ 2010, an organization conducted a poll of 1045 students in high school and asked if they were satisfied with the lunches supplied through the school. Of the 1045 ​surveyed, 502 indicated they were satisfied. Does this suggest the proportion of students satisfied with the quality of lunches has​ decreased? ​

(a) What does it mean to make a Type II error for this​ test?

​(b) If the researcher decides to test this hypothesis at the alpha equals 0.10 level of​ significance, compute the probability of making a Type II​ error, beta​, if the true population proportion is 0.48. What is the power of the​ test?

​(c) Redo part​ (b) if the true population proportion is 0.52.

Cross Functional Essay Individually, students will prepare a 3-5 page essay on the relationships ... Cross Functional Essay Individually, students will prepare a 3-5 page essay on the relationships and inter-dependencies between marketing and other functional areas. This essay is due Saturday (midnight) of week 3. Note: Functional Areas of Business Include: Human Resources Accounting Finance Marketing Production / Operations Administrative Support INSTRUCTIONS Students must use research from at least 3-5 academically reviewed journal articles (only). All journal articles must be in the range of 2015 to present. need answer atleast 3-5 pages and please note that there should not be plagarism

Having done poorly on their Math final exams in​ June, six students repeat the course in summer school and take another exam in August. If these students are representative of all students who might attend this summer school in other​ years, do these results provide evidence that the program is​ worthwhile? Use a = 0.05. Assume all conditions and assumptions have been satisfied.

Student   June    August
A   52   49
B   52   68
C   68   74
D   70   66
E   65   73
F   64   75

Calculate the test statistic.

t = _ ? (Round to three decimal places as​ needed.)

Calculate the​ P-value

P-value = _ ? (Rounding to four decimal places.)

Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score ? of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.8 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 510 . In answering the questions, use ? ‑scores rounded to two decimal places.

a) If you choose one student at random, what is the probability that the student's score is between 505 and 515 ?

b) You sample 36 students. What is the standard deviation of the sampling distribution of their average score ?¯ ?

Problems 6-10: In 2015 about 60% of college students used Twitter. In a recent study of

100 students, 80 now use Twitter. Is this evidence to think the percent has changed? We

wish to conduct a hypothesis test with 5% significance.

1. State the null and alternative hypothesis.
2. Find the test statistic and P-value and report those values here:
3. What is the decision and conclusion?

4. Now, construct a 95% confidence interval using the sample of 100 students and 80

saying they use twitter.

5. Does the Confidence Interval support your decision for #8? Why or why not?
6. (Bonus): What type of error could we have made in this anaylsis? (Type 1 or Type 2)

The professor would also like to know whether viewing the presidential debate would influence students’ intention to vote and randomly assigns students to one of two groups. Group one viewed the last presidential debate of the major candidates while the second group did not view the debate. After the debate had aired, both groups were asked to report their intention to vote. The question was formatted in a five-point scale as follows: 1= “I do not intend to vote in the next presidential election” to 5= “I absolutely intend to vote in the next presidential election.” Did exposure to the presidential debate relate to whether undergraduate students intend to vote in the presidential election?

1. State the following:H₀ :H_A:

Question 1

A university claims that the average cost of books per student, per semester is $300. A group of students believes that the actual mean is higher than this. They take a random sample of 100 students and calculate the sample mean to be $345 with a standard deviation of $200.

a)         Perform a z-test to see if the students are correct, that the true mean is greater than $300 using α = 0.05. Specify the hypotheses, test statistic, decision rule and conclusion.

b) Calculate the p-value for the test in part a). Does this agree with your answer to part a)? Explain why or why not.

c)   Calculate a 90% confidence interval for µ. Does this agree with your answer to part a)? Explain why or why not.

ISBN: 9780134090191 BUILDING LITERACY IN THE K-12 CLASSROOM

From your reading of chapters 1, 2, and 3, in which of the following accountability measures do you feel the most confident? Why? In which do you feel most challenged? Why?

1. Effective teachers teach students how to use the writing process - prewriting, drafting, revising, editing, publishing to write and refine their compositions.  

2. Effective teachers determine students' independent, instructional, and frustration reading levels.

3. Effective teachers link assessment with instruction through planning, monitoring, evaluating, and reflecting.

4. Effective teachers prepare students for high-stakes tests without sacrificing their instructional programs.