Question

Which of the following is true about the one sample z-test and one sample t-test: for...

Which of the following is true about the one sample z-test and one sample t-test:

for a t-test, the population mean and standard deviation are needed.

The z and t-tests are identical in terms of the amount of information needed.

for a t-test only the sample mean is needed.

for a z-test the population mean and standard deviation are needed.

The z and t-tests are identical except for the size of the sample used.

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
Answer the following about T-Test & T-distributions: 1. Which of the following statements related to the...
Answer the following about T-Test & T-distributions: 1. Which of the following statements related to the t-distribution is not true? Select one: a. Since the population standard deviation is usually unknown, the standard error of the sample mean is estimated using the sample standard deviation as an estimator for the population standard deviation. The formula is s/sqrt(n). b. The population must be t-distributed in order to use the t-distribution. c. Like the Normal distribution, the t-distribution is symmetric and unimodal....
After beginning the process of conducting a one-sample t-test and pulling up the "One-Sample T Test"...
After beginning the process of conducting a one-sample t-test and pulling up the "One-Sample T Test" box using SPSS, which value would go in the "Test Value" box? A. The sample standard deviation B. The sample size C. The population standard deviation D. The sample mean E. The mean from the null hypothesis
All of the following statements are true about paired-sample t tests EXCEPT ______. They compare the...
All of the following statements are true about paired-sample t tests EXCEPT ______. They compare the calculated t scores from a sample to a t distribution They can be used when the population variance is unknown They can be used when the sample means are unknown. They involve hypothesis-testing procedures.
For which of the following is a t-test appropriate for performing a hypothesis test? - A...
For which of the following is a t-test appropriate for performing a hypothesis test? - A convenient sample of 23 individuals is taken from the residents of a city with approximately normally distributed commute times. The sample mean is 19 minutes and the sample standard deviation is 2 minutes. - A population is used to obtain a sample mean of 53 and a sample standard deviation of 7 based on a convenient sample of size 19. - A sample mean...
With respect to the z test (statistic) and the t test (statistic), each of the following...
With respect to the z test (statistic) and the t test (statistic), each of the following are true, except: 1. When using either the z test or the t test, the sampling distribution should be positively skewed. 2. The z test is appropriate when the parameters of the population are known. 3. The t test is appropriate when the parameters of the population are unknown. 4. When using the z test or the t test depends of if μ and...
Determine whether the z -test or the t -test should be performed, or whether a statistician...
Determine whether the z -test or the t -test should be performed, or whether a statistician should be consulted. Part 1 of 3 A simple random sample of size 23 has mean x = 41.8 . The population standard deviation is σ = 3.72 . The population is normally distributed. Can you conclude that the population mean differs from 40 ? The population standard deviation ▼(Choose one) known. The sample size n ▼(Choose one) greater than 30 . The population...
discuss the differences between a one-sample z-test, one-sample t-test, the independent samples t-test and the dependent...
discuss the differences between a one-sample z-test, one-sample t-test, the independent samples t-test and the dependent samples t-test. Specifically, under what circumstances would you conduct each test and what type of information comes from a known/defined population versus your sample data?
1) Which of the following statements is correct about the standard normal distribution and t distribution?...
1) Which of the following statements is correct about the standard normal distribution and t distribution? a) standard normal distribution is used to eliminate population mean, while t distribution is used to estimate population standard deviation b) t distribution is always centered at 0, while the center of a standard normal destruction depends on the sample mean c) none of the 3 answer choices d) standard normal distribution curve is higher than t distribution curve at the tails 2) If...
Suppose a one sample t-test has a sample mean of 43.61, a sample standard deviation of...
Suppose a one sample t-test has a sample mean of 43.61, a sample standard deviation of 4.80, a sample of size 65, and a critical t* of 1.998. The upper endpoint (to one decimal point) of the confidence interval for the mean is 44.8. True or FALSE
A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to...
A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the critical-value approach. Show all work carefully on paper, include a graph, and fill in the blanks below. x-bar = 21, s = 7.4, n = 11, H0: μ = 18.7, Ha: μ ≠ 18.7, α = 0.05
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT