13. Time Magazine states that the drop out rate for high school seniors is ten percent....
13. Time Magazine states that the drop out rate for high school seniors is ten percent. You conduct a test to see if the drop out rate for high school seniors is actually more than ten percent. One hundred high school seniors were randomly selected to see if they had dropped out. The number of these high school seniors who dropped out is 15. Determine the p-value using the answer to question.
Time Magazine states that the drop out rate for high school seniors is ten percent. You conduct a test to see if the drop out rate for high school seniors is actually more than ten percent. One hundred high school seniors were randomly selected to see whether they dropped out. The number of these high school seniors who dropped out is 5. Use the information and answer from question 13 to make a decision. What is the decision? Explain. (α = .01) (3 pts)
please help answer the last question.
Homework Answers
Hence, proportion of the
high seniors who drops out is not more than 10%Add Answer to:
13. Time Magazine states that the drop out rate for high school
seniors is ten percent....
At a local high school, the juniors and seniors compete to see who has a better...
At a local high school, the juniors and seniors compete to see who has a better average on a statistics test. Ten randomly selected junior had an average of 38.0 points with a standard deviation of 2.9 and 14 randomly selected seniors had an average of 31.2 points with a standard deviation of 6.2. Assume both populations follow a normal distribution We want to perform a test to see if on average juniors perform better on the test. a. Define...
In a sample of 13 randomly selected high school seniors, the mean score on a standardized...
In a sample of 13 randomly selected high school seniors, the mean score on a standardized test was 1199 and the standard deviation was 166.0. Further research suggests that the population mean score on this test for high school seniors is 1017. Does the t-value for the original sample fall between -toos and boos? Assume that the population of test scores for high school seniors is normally distributed The t-value oft- fall between -0.99 and long because (Round to two...
4. At a local high school, the juniors and seniors compete to see who has a...
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5. At a local high school 5000 juniors and seniors recently took an aptitude test. The...
5. At a local high school 5000 juniors and seniors recently took an aptitude test. The results of the exam were normally distributed with mean = 450 and = 50. Calculate the following: a. The PERCENT of students to the nearest tenth of a percent that scored over 425 b. The number of students that scored more than 475 C. The probability of a student selected at random having scored between 400 and 575 A statistics instructor recorded the grades...
answer neatly and correctly please! A decade-old study found that the proportion of high school seniors...
answer neatly and correctly
please!
A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 74%. Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H. and the alternative hypothesis H, that we would use for this test. u β i σ p s...
5. At a local high school 5000 juniors and seniors recently took an aptitude test. The...
5. At a local high school 5000 juniors and seniors recently took an aptitude test. The results of the exam were normally distributed with mean = 450 and o = 50. Calculate the following: a. The PERCENT of students to the nearest tenth of a percent that scored over 425 b. The number of students that scored more than 475 C. The probability of a student selected at random having scored between 400 and 575 6. A statistics instructor recorded...
A report says that 82% of British Columbians over the age of 25 are high school...
A report says that 82% of British Columbians over the age of 25 are high school graduates. A survey of randomly selected residents of a certain city included 1290 who were over the age of 25, and 1012 of them were high school graduates. Part a Which of the following gives the approximated model for the sample proportion of high school graduates in a sample of 1290 students? Answer: Select one N(0.78,0.011) N(0.82,0.011) N(78,1.11) N(82,1.11) N(1012, 13.80) Part b How many...
Question 21 3 pts Large Sample Proportion Problem. A survey was conducted on high school marijuana...
Question 21 3 pts Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the 2266 high school students surveyed, 970 admitted to smoking marijuana at least once. A study done 10 years earlier estimated that 45% of the students had tried marijuana. We want to conduct a hypothesis test to see if the true proportion of high school students who tried marijuana is now less than 45%. Use alpha = .01. What is the critical...
A nationwide, standardized test taken by high-school juniors and seniors may or may not measure academic...
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At a local high school, the juniors and seniors compete to see who has a better average on a statistics test. Ten randomly selected junior had an average of 38.0 points with a standard deviation of 2.9 and 14 randomly selected seniors had an average of 31.2 points with a standard deviation of 6.2. Assume both populations follow a normal distribution We want to perform a test to see if on average juniors perform better on the test. a. Define...
In a sample of 13 randomly selected high school seniors, the mean score on a standardized test was 1199 and the standard deviation was 166.0. Further research suggests that the population mean score on this test for high school seniors is 1017. Does the t-value for the original sample fall between -toos and boos? Assume that the population of test scores for high school seniors is normally distributed The t-value oft- fall between -0.99 and long because (Round to two...
5. At a local high school 5000 juniors and seniors recently took an aptitude test. The results of the exam were normally distributed with mean = 450 and = 50. Calculate the following: a. The PERCENT of students to the nearest tenth of a percent that scored over 425 b. The number of students that scored more than 475 C. The probability of a student selected at random having scored between 400 and 575 A statistics instructor recorded the grades...
answer neatly and correctly
please!
A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 74%. Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H. and the alternative hypothesis H, that we would use for this test. u β i σ p s...
5. At a local high school 5000 juniors and seniors recently took an aptitude test. The results of the exam were normally distributed with mean = 450 and o = 50. Calculate the following: a. The PERCENT of students to the nearest tenth of a percent that scored over 425 b. The number of students that scored more than 475 C. The probability of a student selected at random having scored between 400 and 575 6. A statistics instructor recorded...
Question 21 3 pts Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the 2266 high school students surveyed, 970 admitted to smoking marijuana at least once. A study done 10 years earlier estimated that 45% of the students had tried marijuana. We want to conduct a hypothesis test to see if the true proportion of high school students who tried marijuana is now less than 45%. Use alpha = .01. What is the critical...
A nationwide, standardized test taken by high-school juniors and seniors may or may not measure academic potential, but we can nonetheless attempt to predict academic performance in college from scores on this test. We have chosen a random sample of 47 students just finishing their first year of college, and for each student we've recorded her score on this standardized test (from 400 to 1600) and her grade point average (on a four point scale) for her first year in...
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