Question

Calculate the t-obtained for a one-sample t-test using the information below. Use a two-tailed t-test with...

Calculate the t-obtained for a one-sample t-test using the information below. Use a two-tailed t-test with alpha = 0.05. In the box, ONLY write your final answer using a whole number (e.g., 1). Sample Mean = 50

Population Mean = 48

Estimated Population Variance = 20

N = 41

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The one sample t-test from a sample of n = 19 observations for the two-sided (two-tailed)...
The one sample t-test from a sample of n = 19 observations for the two-sided (two-tailed) test of H0: μ = 6 H1: μ ≠ 6 Has a t test statistic value = 1.93. You may assume that the original population from which the sample was taken is symmetric and fairly Normal. Computer output for a t test: One-Sample T: Test of mu = 6 vs not = 6 N    Mean    StDev    SE Mean    95% CI            T       P 19 6.200     ...
Suppose you perform a two-tailed one-sample t-test, using an alpha of .05, on data from 15...
Suppose you perform a two-tailed one-sample t-test, using an alpha of .05, on data from 15 participants. Your obtained value of t is 2.91, and the critical value of t is 2.754. Which of the following is the correct way to report this finding?
What is the critical value of t for a two tailed test for a sample of...
What is the critical value of t for a two tailed test for a sample of 43 participants if the alpha is set at .05 a 2.021 b 2.247 c 1.711 d 2.145 A professor wants to know if her introductory statistics class has a good grasp of basic math at the start of the semester. Six students are chosen at random from the class and given a math proficiency test. The professor wants the class as a whole to...
Using the two-sided OC curves for a single-population t-statistic and the information below, what sample size...
Using the two-sided OC curves for a single-population t-statistic and the information below, what sample size would be required to detect a true mean interior temperature as high as 22.75 if we wanted the power of the test to be at least 0.9? Use the sample standard deviation s as an estimate for ?. H0: ?= 22.50 ? = 0.05 s = 0.378 20 40 50 30
Complete parts ​(a) through ​(c) below. ​(a) Determine the critical​ value(s) for a​ right-tailed test of...
Complete parts ​(a) through ​(c) below. ​(a) Determine the critical​ value(s) for a​ right-tailed test of a population mean at the alphaα=.10 with 15 degrees of freedom. tcrit= b) Determine the critical​ value(s) for a​ left-tailed test of a population mean at the α=0.05 level of significance based on a sample size of n=20 c) Determine the critical​ value(s) for a​ two-tailed test of a population mean at the α=.01 level of significance based on a sample size of n=18
Complete parts ​(a) through ​(c) below. ​(a) Determine the critical​ value(s) for a​ right-tailed test of...
Complete parts ​(a) through ​(c) below. ​(a) Determine the critical​ value(s) for a​ right-tailed test of a population mean at the α=0.01 level of significance with 20 degrees of freedom. ​(b) Determine the critical​ value(s) for a​ left-tailed test of a population mean at the α=0.05 level of significance based on a sample size of n =15 ​(c) Determine the critical​ value(s) for a​ two-tailed test of a population mean at the α =0.01 level of significance based on a...
Hours of sleep: The table below provides information about hours of sleep. Calculate statistical power for...
Hours of sleep: The table below provides information about hours of sleep. Calculate statistical power for a one-tailed test (a = 0.05, or 5%) aimed at determining if those in the sample sleep fewer hours, on average, than those in the population. Recalculate statistical power with alpha of 0.01, or 1%. Explain why changing alpha affects power. Explain why we should not use a larger alpha to increase power. Without performing any computations, describe how statistical power is affected by...
Show work please. Compute z-scores or t-scores accordingly then find their one-tailed AND two-tailed p-value the...
Show work please. Compute z-scores or t-scores accordingly then find their one-tailed AND two-tailed p-value the following situations. Then, summarize the results of the analysis at α level 0.05. The sample mean consumption of 16 Missouri men is 2610 kcal, with an estimated standard error of 175 kcal. Test the hypothesis that the mean is greater than the population mean consumption of US men of 2350.
14. Calculate the critical t-value(s) for each of the given hypothesis test scenarios below. If mulitple...
14. Calculate the critical t-value(s) for each of the given hypothesis test scenarios below. If mulitple critical values exist for a single scenario, enter the solutions using a comma-separated list. Round t-values to four decimal places. Find the critical t-value(s) for a left-tailed test of hypothesis for a mean, assuming the population standard deviation is unknown, with a sample size of 25 and let α=0.005. t= Find the critical t-value(s) for a right-tailed test of hypothesis for a mean, assuming...
A random sample n=30 is obtained from a population with unknown variance. The sample variance s2...
A random sample n=30 is obtained from a population with unknown variance. The sample variance s2 = 100 and the sample mean is computed to be 85. Test the hypothesis at α = 0.05 that the population mean equals 80 against the alternative that it is more than 80. The null hypothesis Ho: µ = 80 versus the alternative H1: Ho: µ > 80. Calculate the test statistic from your sample mean. Then calculate the p-value for this test using...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT