Show all work or show syntax for calculator!Homework Answers
Add Answer to:
Show all work or show syntax for calculator!
Please keep three decimal places for all problems...
Achievement test scores of all high school seniors in a state have mean 60 and variance...
Achievement test scores of all high school seniors in a state have mean 60 and variance 64. A random sample of n = 100 students from one large high school had a mean score of 58. Is there evidence to suggest that this high school is inferior? (Calculate the probability that the sample mean is at most 58 when n = 100.) Show the appropriate graph of the sample mean.
4. You want to estimate the mean SATM score for 250,000 high school seniors in California. Only a...
4. You want to estimate the mean SATM score for 250,000 high school seniors in California. Only about 45% of California students take the SAT. These self-selected students are planning to attend college and are not representative of all California seniors A simple random sample (SRS) of 500 California high school seniors is tested. The mean score of the sample is Y 461. What could you say about the mean score, n-508 in the population of all 250,000 seniors? Assume...
You want to estimate the mean SATM score for 250,000 high school seniors in California. Only abou...
You want to estimate the mean SATM score for 250,000 high school seniors in California. Only about 45% of California students take the SAT. These self-selected students are planning to attend college and are not representative of all California seniors. A simple random sample (SRS) of 500 California high school seniors is tested. The mean score of the sample is Y = 461 What could you say about the mean score, η = 508 in the population of all 250,000...
An achievement test given to high school seniors is used to predict college GPA. The following...
An achievement test given to high school seniors is used to predict college GPA. The following relationship between the test scores and college GPA exists within the entire population of students: 1. Y 0.10+3.94 X+ E In the above, Y (response) is the college GPA of a given student, X is the student's score on the achievement test (predictor, scored as proportion correct, between 0 and 1), and e is random error, with E~N(0,.005), where the value.005 is the variance...
Directions: Please show your work. Submitting answers only will not earn you full credit for a...
Directions: Please show your work. Submitting answers only will
not earn you full credit for a given problem. Showing work
includes, but is not limited to: formulas, graphs, and
calculations. If you use the web calculator, StatCrunch, Minitab,
Excel, Table V, Graphing Calculator, etc…, you must include your
output with your answer (I suggest using the Snipping Tool in
Windows). Use the prescribed method of test (Classical or P-value)
for each question. Follow all the steps used in hypothesis testing...
"After calculation, round to 4 decimal places" I think I solved it, but would like expert second opinion, thank...
"After calculation, round to 4 decimal places"
I think I solved it, but would like expert second opinion, thank
you!
(1 point) Coaching companies claim that their courses can raise the SAT scores of high school students. But students who retake the SAT without paying for coaching also usually raise their scores. A random sample of students who took the SAT twice found 427 who were coached and 2733 who were uncoached Starting with their verbal scores on the first...
please show all work for problems 1. What % of the curve is below Z of...
please show all work for problems
1. What % of the curve is below Z of -1.5 2. what % of the curve is below 2 of 2.85 3. What of the curve is above 2 of .07 4. What ? of the curve is above 2 of -.17 5. What f of the curve is between Z of 2.85 and .07 6. Percentile Rank of 35 is z of 7. Percentile Rank of 76 is z of 8. On...
C. Calculation Problems (40 marks) 1. Using the data in GPA2.RAW on 4,137 college students, the...
C. Calculation Problems (40 marks) 1. Using the data in GPA2.RAW on 4,137 college students, the following equation was esti- mated by OLS: colgpa = 1.392 - 0135 hsperc+.00148 sat n =4,137, R2 = 273, where colgpa is measured on a four-point scale, hsperc is the percentile in the high school graduating class (defined so that, for example, hsperc =5 means the top 5% of the class), and sat is the combined math and verbal scores on the student achievement...
The governor of a state wanted to assess the public education system of the state. She...
The governor of a state wanted to assess the public education system of the state. She instructed a group of researchers to create a test to assess the knowledge of every high school senior in the state. The researchers administered the tests and found that the average score was 34 points out of 100, with a standard deviation of 29 points. Complete paris (a) through (c) below. a. Identify the population and variable. Choose the correct population below. O A...
Please answer Problems 1-5 (with all the parts) and please show the work/steps! Thank you! 1/2...
Please answer Problems 1-5 (with all the parts) and please show
the work/steps! Thank you!
1/2 STA103_HW6.pdf Due Friday Dec 7th Problem 1. (problem 10.3 page 194) We have a simple random sample of size 4 from a population with mean u. Consider the following two estimators of u 10 10 a. Show that both μ1 and μ2 are unbiased estimators for μ. b. Which one is better? Fully justify your answer Problem 2. (Problem 10.4 page 194) Suppose that...
4. You want to estimate the mean SATM score for 250,000 high school seniors in California. Only about 45% of California students take the SAT. These self-selected students are planning to attend college and are not representative of all California seniors A simple random sample (SRS) of 500 California high school seniors is tested. The mean score of the sample is Y 461. What could you say about the mean score, n-508 in the population of all 250,000 seniors? Assume...
You want to estimate the mean SATM score for 250,000 high school seniors in California. Only about 45% of California students take the SAT. These self-selected students are planning to attend college and are not representative of all California seniors. A simple random sample (SRS) of 500 California high school seniors is tested. The mean score of the sample is Y = 461 What could you say about the mean score, η = 508 in the population of all 250,000...
An achievement test given to high school seniors is used to predict college GPA. The following relationship between the test scores and college GPA exists within the entire population of students: 1. Y 0.10+3.94 X+ E In the above, Y (response) is the college GPA of a given student, X is the student's score on the achievement test (predictor, scored as proportion correct, between 0 and 1), and e is random error, with E~N(0,.005), where the value.005 is the variance...
Directions: Please show your work. Submitting answers only will
not earn you full credit for a given problem. Showing work
includes, but is not limited to: formulas, graphs, and
calculations. If you use the web calculator, StatCrunch, Minitab,
Excel, Table V, Graphing Calculator, etc…, you must include your
output with your answer (I suggest using the Snipping Tool in
Windows). Use the prescribed method of test (Classical or P-value)
for each question. Follow all the steps used in hypothesis testing...
"After calculation, round to 4 decimal places"
I think I solved it, but would like expert second opinion, thank
you!
(1 point) Coaching companies claim that their courses can raise the SAT scores of high school students. But students who retake the SAT without paying for coaching also usually raise their scores. A random sample of students who took the SAT twice found 427 who were coached and 2733 who were uncoached Starting with their verbal scores on the first...
please show all work for problems
1. What % of the curve is below Z of -1.5 2. what % of the curve is below 2 of 2.85 3. What of the curve is above 2 of .07 4. What ? of the curve is above 2 of -.17 5. What f of the curve is between Z of 2.85 and .07 6. Percentile Rank of 35 is z of 7. Percentile Rank of 76 is z of 8. On...
C. Calculation Problems (40 marks) 1. Using the data in GPA2.RAW on 4,137 college students, the following equation was esti- mated by OLS: colgpa = 1.392 - 0135 hsperc+.00148 sat n =4,137, R2 = 273, where colgpa is measured on a four-point scale, hsperc is the percentile in the high school graduating class (defined so that, for example, hsperc =5 means the top 5% of the class), and sat is the combined math and verbal scores on the student achievement...
The governor of a state wanted to assess the public education system of the state. She instructed a group of researchers to create a test to assess the knowledge of every high school senior in the state. The researchers administered the tests and found that the average score was 34 points out of 100, with a standard deviation of 29 points. Complete paris (a) through (c) below. a. Identify the population and variable. Choose the correct population below. O A...
Please answer Problems 1-5 (with all the parts) and please show
the work/steps! Thank you!
1/2 STA103_HW6.pdf Due Friday Dec 7th Problem 1. (problem 10.3 page 194) We have a simple random sample of size 4 from a population with mean u. Consider the following two estimators of u 10 10 a. Show that both μ1 and μ2 are unbiased estimators for μ. b. Which one is better? Fully justify your answer Problem 2. (Problem 10.4 page 194) Suppose that...
Most questions answered within 3 hours.
-
Assume that Earth's orbit around the Sun is a perfect circle.
Earth's inertia is 5.97×1024kg, the...
asked 1 minute from now -
You want to estimate the population mean by taking a sample and
constructing a 80% confidence...
asked 5 minutes ago -
You are working for a company that produces clones of famous
name wireless radio nannies. Your...
asked 8 minutes ago -
Human energetic status affects which of the following aspects of
women's reproductive physiology?
Question options:
hormonal...
asked 8 minutes ago -
The following mechanism has been proposed for the gas-phase
reaction of chloroform (CHCl3) and chlorine.
Cl2...
asked 10 minutes ago -
According to the ideal gas law, a 0.9100 mol sample of oxygen
gas in a 1.139...
asked 21 minutes ago -
In
a survey, 27 people were asked how much they spent on their child's
last birthday...
asked 26 minutes ago -
Which would stimulate decreased respiration?
Hypercapnia and hypoxia
Decreased carbon dioxide and increased oxygen
Increased carbon...
asked 26 minutes ago -
One question on a survey asked whether people believe in hell.
Of the possible responses, 484...
asked 51 minutes ago -
An electromagnetic wave can pass through which one of these:
a. Glass b.Iron c.
Water d....
asked 1 hour ago -
pls review carefully and help pls
In perfect competition in long-run equilibrium, can consumer
surplus or...
asked 1 hour ago -
What information can be presented as evidence during arbitration
proceedings?
asked 1 hour ago