When you're running an ANOVA we no longer have t-test or distribution, instead we use the...
When you're running an ANOVA we no longer have t-test or distribution, instead we use the _______ test and the _______distribution.
What factors are most important in determining whether obtained results will be significant?
What factors are involved in choosing a significance level?
Homework Answers
When you're running an ANOVA we no longer have t-test or distribution, instead we use the F test and the F distribution.
When determining whether obtained results will be significant, the factors most important are the sampling distribution, sample size, effect size, degrees of freedom, confidence levels, statistical significance.
What factors are involved in choosing a significance level
Depends on the how close the difference between the means is. If values are very close/small then we will chose less significance.
thanks
revert back for doubt
please upvote
Add Answer to:
When you're running an ANOVA we no longer have t-test or
distribution, instead we use the...
Suppose we want to test whether or not three means are equal. We want to perform...
Suppose we want to test whether or not three means are equal. We want to perform this test with a 7% significance level. If we perform an ANOVA test, what is the probability of the test producing accurate results (avoiding a Type I error)?____________ Suppose we, instead, run three separate hypothesis tests (t-tests), each with 7% significance level. Mean 1 = Mean 2 Mean 1 = Mean 3 Mean 2 = Mean 3 What is the probability that all three...
If we know the population standard deviation and we use the t-test instead of the Z-test,...
If we know the population standard deviation and we use the t-test instead of the Z-test, a) We will increase the probability of type II error. b) We will increase the probability of type I error. c) We will have the same conclusion d) None of the above The chi-square goodness-of-fit test can be used to test for: a) significance of sample statistics b) difference between population means c) normality d) probability
When only two treatments are involved, ANOVA and the Student’s t test (Chapter 11) result in...
When only two treatments are involved, ANOVA and the Student’s t test (Chapter 11) result in the same conclusions. Also, for computed test statistics, t2 = F. To demonstrate this relationship, use the following example. Fourteen randomly selected students enrolled in a history course were divided into two groups, one consisting of 6 students who took the course in the normal lecture format. The other group of 8 students took the course as a distance course format. At the end...
Use the t-distribution and the sample results to complete the test of the hypotheses. Use a...
Use the t-distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal. Test H0 : μ=10 vs Ha : μ>10 using the sample results x¯=13.2, s=8.7, with n=12. test statistic = p-value =
When only two treatments are involved, ANOVA and the Student's t test (Chapter 11) result in...
When only two treatments are involved, ANOVA and the Student's t test (Chapter 11) result in the same conclusions. Also, for computed test statistics, t F. To demonstrate this relationship, use the following example. Fourteen randomly selected students enrolled in a history course were divided into two groups, one consisting of 6 students who took the course in the normal lecture format. The other group of 8 students took the course as a distance course format. At the end of...
Use the t-distribution and the sample results to complete the test of the hypotheses. Use a...
Use the t-distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal. Test H0 : μ=4 vs Ha : μ≠4 using the sample results x¯=4.8, s=2.3, with n=15. ME: 99% confidence interval
Question: When only two treatments are involved, ANOVA and the Student’s t test (Chapter 11) result...
Question: When only two treatments are involved, ANOVA and the Student’s t test (Chapter 11) result in the same conclusions. Also, for computed test statistics, t2 = F. To demonstrate this relationship, use the following example. Fourteen randomly selected students enrolled in a history course were divided into two groups, one consisting of 6 students who took the course in the normal lecture format. The other group of 8 students took the course as a distance course format. At the...
1. When do we use an independent groups t-test? a. b. c. d. When we are...
1. When do we use an independent groups t-test? a. b. c. d. When we are comparing means from one sample that has been measured twice. When we are comparing means from two different samples. When we are comparing a sample mean to a population mean. When we are comparing two population means. 2. Which of the following is true regarding the use of t-tests for true experiments versus quasi-experimental designs? a. b. We use the same t-test whether it...
We use a t distribution for inference about a population mean instead of the standard Normal...
We use a t distribution for inference about a population mean instead of the standard Normal distribution: if we do not know the population mean and must use the sample mean. if the original population does not have a Normal distribution. if we do not have a simple random sample. if we do not know the population standard deviation and must use the sample standard deviation.
I need help with questions a through g. could we use t alpha instead of z?...
I need help with questions a through g. could we use t
alpha instead of z? since we are talking about a sample mean ?
please show z & t, is it indistinct to use either or ?
ne expected mean of a normal population is 100, and its standard deviation is 12. Asample of 36 measurements gives a sample mean of 96, using the α,01 tevel of significance a test is to be made to decide between "population mean...
If we know the population standard deviation and we use the t-test instead of the Z-test, a) We will increase the probability of type II error. b) We will increase the probability of type I error. c) We will have the same conclusion d) None of the above The chi-square goodness-of-fit test can be used to test for: a) significance of sample statistics b) difference between population means c) normality d) probability
When only two treatments are involved, ANOVA and the Student's t test (Chapter 11) result in the same conclusions. Also, for computed test statistics, t F. To demonstrate this relationship, use the following example. Fourteen randomly selected students enrolled in a history course were divided into two groups, one consisting of 6 students who took the course in the normal lecture format. The other group of 8 students took the course as a distance course format. At the end of...
1. When do we use an independent groups t-test? a. b. c. d. When we are comparing means from one sample that has been measured twice. When we are comparing means from two different samples. When we are comparing a sample mean to a population mean. When we are comparing two population means. 2. Which of the following is true regarding the use of t-tests for true experiments versus quasi-experimental designs? a. b. We use the same t-test whether it...
I need help with questions a through g. could we use t
alpha instead of z? since we are talking about a sample mean ?
please show z & t, is it indistinct to use either or ?
ne expected mean of a normal population is 100, and its standard deviation is 12. Asample of 36 measurements gives a sample mean of 96, using the α,01 tevel of significance a test is to be made to decide between "population mean...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago