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Question 10 O pts BONUS QUESTION WORTH 10 points! TWO TAIL TEST: Suppose that a random...
Question 22 3 pts Suppose you are interested in testing a null hypothesis and the p-value...
Question 22 3 pts Suppose you are interested in testing a null hypothesis and the p-value associated with the test statistic is 0.004. As a result, you should o reject the null hypothesis at the 5-percent level of significance, but not at the 1- percent level of significance. do not reject the null hypothesis at the 5-percent level of significance, but do reject the null at the 1-percent level of significance. o do not reject the null hypothesis at the...
The following observations are from two independent random samples, drawn from normally distribut...
The following observations are from two independent random samples, drawn from normally distributed populations. Sample 1 9.74, 9.04, 8.06, 6.09, 7.51 Sample 2 |[25.96, 26,27, 26,34, 39.09, 33.88, 28.87, 33.46] We are interested in testing the null hypothesis that the two population variances are equal, against the one-sided alternative that the variance of Population 1 is larger than the variance of Population 2. Define Population 1 to be the population with the larger sample variance a) What are the appropriate...
The difference of two independent normally distributed random variables is also normally distributed. We have used...
The difference of two independent normally distributed random
variables is also normally distributed. We have used this fact in
many of our derivations. Now, consider two independent and normally
distributed populations with unknown variances σ 2 X and σ 2 Y . If
we get a random sample X1, X2, . . . , Xn from the first population
and a random sample Y1, Y2, . . . , Yn from the second population
(note that both samples are of...
Question 3 10 pts Use the following information for questions 3 - 10 The table below...
Question 3 10 pts Use the following information for questions 3 - 10 The table below gives information on a variable for three samples selected from three normally distributed populations with equal variances. Sample II Sample III Sample 15 18 By using ANOVA procedure, we wish to test the null hypothesis that the means of the three corresponding populations are equal. The significance level is 1%. The degrees of freedom for between the groups of the F distribution are: 2...
1) Identify the rejection point(s) for the test of the following hypothesis: H0: mean = 10,...
1) Identify the rejection point(s) for the test of the following hypothesis: H0: mean = 10, Ha: mean != 10 Conducted on a sample size of 15, on a normally distributed population with unknown population variance, and a desired Type1 error probability (alpha) of 0.05. Hint: use the appropriate statistical function in your spreadsheet to determine the rejection point. Z test with rejection points -1.64 and +1.64 Z test with rejection points -1.96 and +1.96 t-test with degrees of freedom=14,...
a through d please To test Ho = 50 versus Hy < 50, a random sample...
a through d please
To test Ho = 50 versus Hy < 50, a random sample of size n=23 is obtained from a population that is known to be normally distributed. Complete parts (a) through (d) below. Click here to view the t-Distribution Area in Right Tail (a) If x = 46 4 and s= 12.9, compute the test statistic. to-(Round to three decimal places as needed) (b) If the researcher decides to test this hypothesis at the a=0.05 level...
Question 42 2 pts 42. To test the claim that o > 3.1, a random sample...
Question 42 2 pts 42. To test the claim that o > 3.1, a random sample of size n=15 is obtained from a population that is known to be normally distributed. Use s2 = 1.52 and a = 0.05 level of significance. Answer questions 42 through 43. State the null and alternate hypotheses. HO: 0 < 3.1; H1: 0 = 3.1 Left Tailed Test HO: 0 = 3.1; H1: 0 < 3.1 Left Tailed Test HO:0 > 3.1; H1: 0...
please answer these questions QUESTION 14 The owner of a toy store has received his first...
please answer these questions
QUESTION 14 The owner of a toy store has received his first shipment of a certain type of toy, and is trying to decide whether $26.50 is an acceptable prion to charge for this toy. Ho samples 40 other stores that already sell this toy, and finds that the average price for the 40 stores in $24.63, and the standard deviation is $6.12. He will decide that $26.50 is acceptable if he finds that it is...
Question 24 3 pts Suppose that the underlying population is normally distributed. From a random sample...
Question 24 3 pts Suppose that the underlying population is normally distributed. From a random sample of 16 individuals from this population, the sample mean is 8 and the sample standard deviation is 10. Suppose someone claims that the true population mean is 3. The value of the t-test statistic is and the null hypothesis be rejected at the 10-percent level of significance. 1.2; cannot 2; can 3.2; cannot O 1.8; can
(11-13] The information below is based on independent simple random samples taken from two normally distributed...
(11-13] The information below is based on independent simple random samples taken from two normally distributed populations having equal variances. Based on the sample information, answer the following questions about the difference between two population means. ni = 13 n2 = 12 X 1 = 51 i , = 58 S = 6 S2 = 5 11) (1 point) The parameter of interest could be: a. X1-X2 b. H1-42 C. P1-P2 d. Other, please specify: 12) (1 point) Your friend...
Question 22 3 pts Suppose you are interested in testing a null hypothesis and the p-value associated with the test statistic is 0.004. As a result, you should o reject the null hypothesis at the 5-percent level of significance, but not at the 1- percent level of significance. do not reject the null hypothesis at the 5-percent level of significance, but do reject the null at the 1-percent level of significance. o do not reject the null hypothesis at the...
The following observations are from two independent random samples, drawn from normally distributed populations. Sample 1 9.74, 9.04, 8.06, 6.09, 7.51 Sample 2 |[25.96, 26,27, 26,34, 39.09, 33.88, 28.87, 33.46] We are interested in testing the null hypothesis that the two population variances are equal, against the one-sided alternative that the variance of Population 1 is larger than the variance of Population 2. Define Population 1 to be the population with the larger sample variance a) What are the appropriate...
The difference of two independent normally distributed random
variables is also normally distributed. We have used this fact in
many of our derivations. Now, consider two independent and normally
distributed populations with unknown variances σ 2 X and σ 2 Y . If
we get a random sample X1, X2, . . . , Xn from the first population
and a random sample Y1, Y2, . . . , Yn from the second population
(note that both samples are of...
Question 3 10 pts Use the following information for questions 3 - 10 The table below gives information on a variable for three samples selected from three normally distributed populations with equal variances. Sample II Sample III Sample 15 18 By using ANOVA procedure, we wish to test the null hypothesis that the means of the three corresponding populations are equal. The significance level is 1%. The degrees of freedom for between the groups of the F distribution are: 2...
a through d please
To test Ho = 50 versus Hy < 50, a random sample of size n=23 is obtained from a population that is known to be normally distributed. Complete parts (a) through (d) below. Click here to view the t-Distribution Area in Right Tail (a) If x = 46 4 and s= 12.9, compute the test statistic. to-(Round to three decimal places as needed) (b) If the researcher decides to test this hypothesis at the a=0.05 level...
Question 42 2 pts 42. To test the claim that o > 3.1, a random sample of size n=15 is obtained from a population that is known to be normally distributed. Use s2 = 1.52 and a = 0.05 level of significance. Answer questions 42 through 43. State the null and alternate hypotheses. HO: 0 < 3.1; H1: 0 = 3.1 Left Tailed Test HO: 0 = 3.1; H1: 0 < 3.1 Left Tailed Test HO:0 > 3.1; H1: 0...
please answer these questions
QUESTION 14 The owner of a toy store has received his first shipment of a certain type of toy, and is trying to decide whether $26.50 is an acceptable prion to charge for this toy. Ho samples 40 other stores that already sell this toy, and finds that the average price for the 40 stores in $24.63, and the standard deviation is $6.12. He will decide that $26.50 is acceptable if he finds that it is...
Question 24 3 pts Suppose that the underlying population is normally distributed. From a random sample of 16 individuals from this population, the sample mean is 8 and the sample standard deviation is 10. Suppose someone claims that the true population mean is 3. The value of the t-test statistic is and the null hypothesis be rejected at the 10-percent level of significance. 1.2; cannot 2; can 3.2; cannot O 1.8; can
(11-13] The information below is based on independent simple random samples taken from two normally distributed populations having equal variances. Based on the sample information, answer the following questions about the difference between two population means. ni = 13 n2 = 12 X 1 = 51 i , = 58 S = 6 S2 = 5 11) (1 point) The parameter of interest could be: a. X1-X2 b. H1-42 C. P1-P2 d. Other, please specify: 12) (1 point) Your friend...
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