About 96 percent of the very largest colleges and universities offer distance learning courses. Suppose you...
About 96 percent of the very largest colleges and universities offer distance learning courses. Suppose you are to randomly select 20 such institutions and count the number (denoted by X) that offer distance learning courses.
The value of X depends on the selected random sample of institutions so it would vary from one sample to another. On average, we expect ____ schools with a standard deviation of ______ schools would offer such courses. (Round to 1 decimal place).
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About 96 percent of the very largest colleges and universities
offer distance learning courses. Suppose you...
(9 points) Education. Post-secondary educational institutions in the United States (trade schools, colleges, universities, etc.) traditionally...
(9 points) Education. Post-secondary educational institutions in the United States (trade schools, colleges, universities, etc.) traditionally offer four different types of degrees or certificates. The U.S. Department of Education recorded the highest degree granted by each of these institutions in the year 2003. The percentages are shown in the table below. A random sample of 250 institutions was taken in 2013 and the number of institutions in the sample for each category is also shown in the table. Conduct a...
In the United States, Scholastic Aptitude Test (SAT) scores are used by universities when selecting students for admission. Private companies and high schools offer SAT preparatory courses to help st...
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I just need the answer for E and F, thank you:) Suppose the lengths of the...
I just need the answer for E and F, thank you:)
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean p=123 days and standard deviation = 13 days. Complete parts (a) through (1) below. (a) What is the probability that a randomly selected pregnancy lasts less than 118 days? The probability that a randomly selected pregnancy lasts less than 118 days is approximately 0.3503). (Round to four decimal places as needed.) Interpret this...
Budgeting for an Academic Department at a State University: Can You Believe the Numbers? INTRODUCTION You...
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(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
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In the United States, Scholastic Aptitude Test (SAT) scores are used by universities when selecting students for admission. Private companies and high schools offer SAT preparatory courses to help students improve their scores. This has led some people to ask, "Do SAT preparatory classes effectively increase SAT scores?" The following study, cited in a major newspaper, claims that they do (but not by a substantial amount): "A new study . . . shows that [SAT preparatory] classes are effective in...
I just need the answer for E and F, thank you:)
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean p=123 days and standard deviation = 13 days. Complete parts (a) through (1) below. (a) What is the probability that a randomly selected pregnancy lasts less than 118 days? The probability that a randomly selected pregnancy lasts less than 118 days is approximately 0.3503). (Round to four decimal places as needed.) Interpret this...
Budgeting for an Academic Department at a State University: Can You Believe the Numbers? INTRODUCTION You are the senior accounting faculty member in the business school and your dean, Dean Weller, is asking for help. She is very discouraged after a midyear budget meeting with the Vice President of Finance. The college's Department of Social Work has a large budget deficit, and because of this the VP is inclined towards closing the department entirely or closing its bachelor's program. The...
photos for each question are all in a row
(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
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