Question
In: Statistics and Probability
You wish to see if boys have a higher average math SOL score than girls. A...
You wish to see if boys have a higher average math SOL score than girls. A random sample of 217 boys showed an average math SOL score of 478.26 with a standard deviation of 22.95. A random sample of 260 girls showed an average math score of 474.23 and a standard deviation of 22.18. Does this show, at significance level .05, that boys have a higher average math SOL score than girls?
A: Are the assumptions met?
B:What are the hypotheses?
C:What is the test statistic?
D:What is the p-value?
E:What is your conclusion?
Solutions
orchestra answered 2 years agoRelated Solutions
You wish to see if there is a difference between the average score of boys and...
You wish to see if there is a difference between the average
score of boys and girls on the math SOL. A random sample of 195
boys had an average score of 444.34 with a standard deviation of
45.65. A random sample of 202 girls had an average score of 452.64
and a standard deviation of 37.75.
A: Verify the assumptions.
B: State the 95% confidence interval for the difference of the
average SOL scores.
C: Does this interval shows,...
You wish to see if there is a difference between the average score of boys and...
You wish to see if there is a difference between the average
score of boys and girls on the math SOL. A random sample of 195
boys had an average score of 444.34 with a standard deviation of
45.65. A random sample of 202 girls had an average score of 452.64
and a standard deviation of 37.75.
A: Verify the assumptions.
B: State the 95% confidence interval for the difference of the
average SOL scores.
C: Does this interval shows,...
For decades, people have believed that boys are innately more capable than girls in math. In...
For decades, people have believed that boys are innately more
capable than girls in math. In other words, due to the intrinsic
differences in brains, boys are better suited for doing math than
girls. Recent research challenges this stereotype, arguing that
gender differences in math performance have more to do with culture
than innate aptitude. In the U.S., for example, girls perform just
as well on standardized math tests as boys. Others argue, however,
that while the average may be...
You wish to see the average improvement on SOL scores after students have completed a program....
You wish to see the average improvement on SOL
scores after students have completed a program. A random sample of
300 students who completed the program showed an average
improvement of 4.35 points with a standard deviation of 0.96
points. Calculate and interpret a 90% confidence interval for the
average improvement for all students who would complete this
program.
A: Verify the assumptions.
B: Calculate a 90% confidence interval for the average
improvement for all students who would complete this...
One of your peers claims that boys do better in math classes than girls. Together you...
One of your peers claims that boys do better in math classes
than girls. Together you run two independent simple random samples
and calculate the given summary statistics of the boys and the
girls for comparable math classes. In Calculus, 15 boys had a mean
percentage of 82.3 with standard deviation of 5.6 while 12 girls
had a mean percentage of 81.2 with standard deviation of 6.7. What
assumptions need to be made in order to determine the 90%
confidence...
You wish to see if a difference exists in the average SAT score for students at...
You wish to see if a difference exists in the average SAT score
for students at two local colleges. A random sample of 200 students
from College A had an average SAT score of 1641.7 with a standard
deviation of 28.4. A random sample of 178 students from College B
had an average SAT score of 1629.8 with a standard deviation of
25.6. Does this show, at 95% confidence, a difference in the
average SAT scores? Be sure to state...
You wish to test the claim that the average IQ score is less than 100 at...
You wish to test the claim that the average IQ score is less
than 100 at the .05 significance level. You determine the
hypotheses are:
Ho: μ=100
H1:μ<100
You take a simple random sample of 38 individuals and find the
mean IQ score is 95.8, with a standard deviation of 15.2. Let's
consider testing this hypothesis two ways: once with assuming the
population standard deviation is not known and once with assuming
that it is known.
Round to three decimal...
You wish to test the claim that the average IQ score is less than 100 at...
You wish to test the claim that the average IQ score is less
than 100 at the .05 significance level. You determine the
hypotheses are:
Ho: μ=100
H1:μ<100
You take a simple random sample of 38 individuals and find the
mean IQ score is 95.8, with a standard deviation of 15.2. Let's
consider testing this hypothesis two ways: once with assuming the
population standard deviation is not known and once with assuming
that it is known.
Round to three decimal...
You wish to test the claim that the average IQ score is less than 100 at...
You wish to test the claim that the average IQ score is less
than 100 at the .01 significance level. You determine the
hypotheses are:
Ho: μ=100
H1:μ<100
You take a simple random sample of 79 individuals and find the
mean IQ score is 96.1, with a standard deviation of 14.8. Let's
consider testing this hypothesis two ways: once with assuming the
population standard deviation is not known and once with assuming
that it is known.
Round to three decimal...
You wish to test the claim that the average IQ score is less than 100 at...
You wish to test the claim that the average IQ score is less
than 100 at the .025 significance level. You determine the
hypotheses are:
Ho: μ=100
H1:μ<100
You take a simple random sample of 60 individuals and find the
mean IQ score is 95.7, with a standard deviation of 16. Let's
consider testing this hypothesis two ways: once with assuming the
population standard deviation is not known and once with assuming
that it is known.
Round to three decimal...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Can you explain to me the differnces in how we paid for the health care (access...
- Discuss proactive and defensive marketing in context to the company position in the hypothetical market structure...
- Write a java code that could be used to show the simulation of a tornado. use...
- A Canadian company issues an 8-year term bond with face value of $1,000 and 6% coupon...
- 1. Consider the following nuclides: &
- In general, teams can be described three ways. Name and define each.
- JAVASCRIPT: Please create an array of student names and another array of student grades. - Create...
ADVERTISEMENT