Question

Suppose we are interested in whether an Olympic Bobsleigh team is slower than 3.5 minutes. In...

Suppose we are interested in whether an Olympic Bobsleigh team is slower than 3.5 minutes.

  1. In symbols, state the correct hypotheses to test this claim.

  1. Based on your confidence interval above, would you reject or fail to reject the null hypotheses? Why?
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Test the claim that the mean GPA for student athletes is lower than 3.5 at the...
Test the claim that the mean GPA for student athletes is lower than 3.5 at the .10 significance level. Based on a sample of 45 people, the sample mean GPA was 3.47 with a standard deviation of 0.08 The test statistic is:_____ (to 3 decimals) The p-value is: ______(to 3 decimals) Based on this we: -Fail to reject the null hypothesis -Reject the null hypothesis
William is interested in knowing whether or not athletics from his team have lower satisfaction with...
William is interested in knowing whether or not athletics from his team have lower satisfaction with their team on a survey than the known population average survey score of 19 and the known population survey standard deviation is 12. He samples 36 athletics from his team and finds a sample mean of 15. Assume an alpha = .05. • Conduct a one-sample z-test to answer the question above. • Report hypotheses • the test statistic • the critical value •...
1. We are interested in testing whether the variance of a population is significantly less than...
1. We are interested in testing whether the variance of a population is significantly less than 1.44. The null hypothesis for this test is a. Ho: s2 < 1.44 b. Ho: s2 >= 1.44 2. How do I do this by the calculator? The 95% confidence interval estimate for a population variance when a sample variance of 30 is obtained from a sample of 12 items is: answer is 15.05474 to 86.38743
Suppose grade point averages are normally distributed. We are interested in whether smokers have different gpa’s...
Suppose grade point averages are normally distributed. We are interested in whether smokers have different gpa’s than non-smokers. We know that non-smokers have a mean gpa of 3.1. You take a sample of 16 smokers and find they have a mean gpa of 3.38 with standard deviation of .021. a. Suppose you wanted to test whether the gpas of the two groups different. • write down the null and alternative hypotheses • Construct the test statistic. What is the distribution...
Suppose grade point averages are normally distributed. We are interested in whether smokers have different gpa’s...
Suppose grade point averages are normally distributed. We are interested in whether smokers have different gpa’s than non-smokers. We know that non-smokers have a mean gpa of 3.1. You take a sample of 16 smokers and find they have a mean gpa of 3.38 with standard deviation of .021. a. Suppose you wanted to test whether the gpas of the two groups different. • write down the null and alternative hypotheses • Construct the test statistic. What is the distribution...
3. The average pulse rate is known to be 80 beats per minutes. Suppose we take...
3. The average pulse rate is known to be 80 beats per minutes. Suppose we take a sample of 30 adults and find that the average heart rate in the sample is 73.76 with a sample standard deviation of 7.06. We are interested in testing if the average pulse rate is actually lower than 80 beats per minute. ( please show all steps and how you got each number) a. Using the sample of 30 adults, what would the 95%...
The US Department of Energy reported that 45% of homes were heated by natural gas. A...
The US Department of Energy reported that 45% of homes were heated by natural gas. A random sample of 300 homes in Oregon found that 170 were heated by natural gas. Test the claim that proportion of homes in Oregon that were heated by natural gas is different than what was reported. Use a 5% significance level. Give answer to at least 4 decimal places. What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)...
we are interested in whether there is a relationship between belief in an afterlife and religiosity,...
we are interested in whether there is a relationship between belief in an afterlife and religiosity, so the variables are •life_after_death (yes,no,unsure) •religiosity (0, 1, 2, 3) 1.[Writing] If there is an association, would we be able to say religiosity causes a difference in belief in afterlife? Explain. 2.State the null and alternative hypotheses
Suppose we are interested in analyzing the weights of NFL players. We know that on average,...
Suppose we are interested in analyzing the weights of NFL players. We know that on average, NFL players weigh 247 pounds with a population standard deviation of 47 pounds. Suppose we take a sample of 30 new players and we find that the average weight from that sample is 237 pounds. We are interested in seeing if the weight of NFL players is decreasing If I wanted to control my margin of error and set it to 5 at 90%...
Consider the hypothesis test H0: = against H0: > . Suppose that the sample sizes are...
Consider the hypothesis test H0: = against H0: > . Suppose that the sample sizes are n1 = 20 and n2 = 8, and that = 4.5 and = 2.3. Use α = 0.01. Test the hypothesis and explain how the test could be conducted with a confidence interval on σ1/σ2. Refer the question above test the hypothesis and provide your conclusion. At the alpha = 0.01, we fail to reject and conclude that the variances are the same At...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT