If you have three data sets one with n1=9, n2=16 and n3=12 which test would you...
If you have three data sets one with n1=9, n2=16 and n3=12 which test would you use to compare the underlying populations?
a. Ind. T test
b. H test
c. U test
d. ANOVA
Homework Answers
Answer:
d. ANOVA
Explanation:
For the comparison of more than two population means we use the ANOVA F test. We know that when we need to compare the two population means, then we use either t-test when we are not given the values for population variances or z-test when we are given the values for population standard deviations.
Add Answer to:
If you have three data sets one with n1=9, n2=16 and n3=12 which
test would you...
QUESTION 1 In one-way ANOVA, suppose that there are three treatments with n1 = 5, n2...
QUESTION 1 In one-way ANOVA, suppose that there are three treatments with n1 = 5, n2 = 6, and n3 = 5. What is the rejection region for this test at the 5% level of significance? a)F > 3.81 b)F > 3.63 c)F > 3.24 d)F > 4.08 QUESTION 2 In one-way ANOVA, suppose that there are four treatments with n1 = 5, n2 = 6, n3 = 5, and n4 = 4. What is the rejection region for this...
Data were collected from three populations using a completely randomized design. The following describes the sample...
Data were collected from three populations using a completely randomized design. The following describes the sample data: n1 n2 n3 =6 R1 55 R2 =64 R3 78 Conducting a test of hypothesis to verify whether there is at least one inequality in the probability distributions, we find the statistics to be equal to We therefore reject the null hypothesis of equality because H-test is greater than which is the rejection region for the test at alpha 0.05 Round off your...
Assume that you have a sample size of n1 = 16 with a mean of 42 and a standard deviation (S) equal to 9. Assume that you have another independent sample with n2 = 25, a mean of 36 and a standard devia...
Assume that you have a sample size of n1 = 16 with a mean of 42 and a standard deviation (S) equal to 9. Assume that you have another independent sample with n2 = 25, a mean of 36 and a standard deviation (S) of 4. Assume you are directed to use a significance level of α = 0.01. [DM.4] Construct the appropriate hypothesis test. Identify H0 and H1. What are the appropriate critical values? (4 Decimal Places) From what...
help thank you :) 4 pts Question 9 9. In a test of hypotheses H :u=...
help thank you :)
4 pts Question 9 9. In a test of hypotheses H :u= 1873 vs. H:< 1873, the rejection region is the interval (-00, -2.896), the value of the sample mean computed from a sample of size 9 is m = 1792, and the value of the test statistic is t = -2.655. The correct decision and justification are Do not reject H, because the sample is small. Do not reject H, because -2.896 < -2.655. Reject...
62, two independent samples of n1 = 8 and n2 = 10 were taken. The data is given below. Both populations are (1 point...
62, two independent samples of n1 = 8 and n2 = 10 were taken. The data is given below. Both populations are (1 point) In a test of two population means - M1 versus u2 - with unknown variances o normally distributed. Sample From Population 1: 15, 19, 20, 20, 22, 18, 17, 14 Sample From Population 2:11, 14, 15, 23, 25, 12, 20, 14, 22, 17 (a) You wish to test the hypothesis that both populations have the same...
Independent random samples of size n1=38 and n2=86 observations, were selected from two populations. The samples...
Independent random samples of size n1=38 and n2=86 observations, were selected from two populations. The samples from populations 1 and 2 produced x1=18 and x2=13 successes, respectively. Define p1 and p2 to be the proportion of successes in populations 1 and 2, respectively. We would like to test the following hypotheses: H0:p1=p2 versus H1:p1≠p2 (a)To test H0 versus H1, which inference procedure should you use? A. Two-sample z procedure B. One-sample z procedure C. One-sample t procedure D. Two-sample t...
In the picture below, I have the output for the same two sets of data. I ran the hypothesis test and the confidence interval. If you had a choice to use one output or the other, which would you choose...
In the picture below, I have the output for the same two sets of data. I ran the hypothesis test and the confidence interval. If you had a choice to use one output or the other, which would you choose and why? Make sure to be specific and include what information you get from each and what information you don't get if you use one over the other. Options Two sample T summary hypothesis test: : Mean of Population 1...
QUESTION 11 For each of the examples below decide which statistical test should be used to...
QUESTION 11 For each of the examples below decide which statistical test should be used to analyze the data. You want to test the effect of one IV on a DV with three levels with different A. Z-test participants receiving each of the levels B. Pearson Correlation You want to compare a sample with a population, but don't know all of the population parameters C. Single sample t-test One group of participants took medicine, another group took a placebo pil...
V V For each of the examples below decide which statistical test should be used to...
V V For each of the examples below decide which statistical test should be used to analyze the data. You want to test the effect of one IV on a DV with three A. Z-test levels with different participants receiving each of the levels B. Pearson Correlation You want to compare a sample with a population, but don't C.Single sample t-test know all of the population parameters D. Independent samples t-test One group of participants took medicine, another group E....
Suppose you want to use the Kruskal-Wallis H-test to compare the probability distributions of thr...
Suppose you want to use the Kruskal-Wallis H-test to compare the probability distributions of three populations. The following are independent random samples selected from the three populations: l: 66, 23, 55, 88, 58, 62, 79,49 Il: 19, 31, 16, 29, 30, 33, 40 IlIl: 75, 96, 102, 75, 98, 78 a. What type of experimental design was used? b. Specify the null and alternative hypotheses you would test. c. Specify the rejection region you would use for your hypothesis test...
Data were collected from three populations using a completely randomized design. The following describes the sample data: n1 n2 n3 =6 R1 55 R2 =64 R3 78 Conducting a test of hypothesis to verify whether there is at least one inequality in the probability distributions, we find the statistics to be equal to We therefore reject the null hypothesis of equality because H-test is greater than which is the rejection region for the test at alpha 0.05 Round off your...
help thank you :)
4 pts Question 9 9. In a test of hypotheses H :u= 1873 vs. H:< 1873, the rejection region is the interval (-00, -2.896), the value of the sample mean computed from a sample of size 9 is m = 1792, and the value of the test statistic is t = -2.655. The correct decision and justification are Do not reject H, because the sample is small. Do not reject H, because -2.896 < -2.655. Reject...
62, two independent samples of n1 = 8 and n2 = 10 were taken. The data is given below. Both populations are (1 point) In a test of two population means - M1 versus u2 - with unknown variances o normally distributed. Sample From Population 1: 15, 19, 20, 20, 22, 18, 17, 14 Sample From Population 2:11, 14, 15, 23, 25, 12, 20, 14, 22, 17 (a) You wish to test the hypothesis that both populations have the same...
QUESTION 11 For each of the examples below decide which statistical test should be used to analyze the data. You want to test the effect of one IV on a DV with three levels with different A. Z-test participants receiving each of the levels B. Pearson Correlation You want to compare a sample with a population, but don't know all of the population parameters C. Single sample t-test One group of participants took medicine, another group took a placebo pil...
V V For each of the examples below decide which statistical test should be used to analyze the data. You want to test the effect of one IV on a DV with three A. Z-test levels with different participants receiving each of the levels B. Pearson Correlation You want to compare a sample with a population, but don't C.Single sample t-test know all of the population parameters D. Independent samples t-test One group of participants took medicine, another group E....
Suppose you want to use the Kruskal-Wallis H-test to compare the probability distributions of three populations. The following are independent random samples selected from the three populations: l: 66, 23, 55, 88, 58, 62, 79,49 Il: 19, 31, 16, 29, 30, 33, 40 IlIl: 75, 96, 102, 75, 98, 78 a. What type of experimental design was used? b. Specify the null and alternative hypotheses you would test. c. Specify the rejection region you would use for your hypothesis test...
Most questions answered within 3 hours.
-
Draw the reactants and products of the following
reaction:
3-ethyl-2-heptene + HOH → 3-ethyl-3-heptanol +
3-ethyl-2-heptanol...
asked 58 seconds ago -
i
need the summary of this article “Why I Don’t Trust The Video Games
Cause Violence”...
asked 3 minutes ago -
Determine the ratio of adipic acid and butylene glycol that
should be used to obtain a...
asked 10 minutes ago -
Calculate the ratio of the resistance of 11.0 m of aluminum wire
2.5 mm in diameter,...
asked 3 minutes ago -
Kinkaid Co. is incorporated at the beginning of this year and
engages in a number of...
asked 7 minutes ago -
when setting up a simple pendulum, calculate the string length
required for the period to equal...
asked 25 minutes ago -
: A small but very close dense mass of 389 kg is brought close
to a...
asked 26 minutes ago -
Create a class called Hotel. The hotel class will track the
current reservations for your one-room...
asked 49 minutes ago -
In space, a 4.0 kg metal ball moving 30 m/s has a head on
collision with...
asked 59 minutes ago -
Financial Markets and Corporate Strategy (assignment template) –
1 of 2
Insights/Instructions: Use this template to...
asked 56 minutes ago -
A firm has announced a cash dividend of $3 dollar per share.
Assuming an efficient market,...
asked 52 minutes ago -
Which of the following statements is consistent with the fact
that capital in an economy is...
asked 1 hour ago