TOPIC:Chi-square test.
In studying the responses to a multiple-choice test question, the following sample data were obtained. At...
please help fast In studying the responses to a multiple-choice test question, the following sample data were obtained. At the 0.10 significance level, test the claim that the responses occur with the same frequency. Ho: The responses to the questions occur with the same frequency Ha: The responses to the questions do not occur with the same frequency Enter the expected frequency rounded to one decimal and the last column rounded to 4 decimals. Observed Response Expected (0 - E)...
= 0.10. You wish to test the following claim (H) at a significance level of a Ho 55.5 H1 55.5 You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: data 56.8 73.6 92.6 87.7 44.2 52.2 81.2 66.7 98.1 64.1 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value= What is the test statistic for this sample? (Report answer...
You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4 categories occur with the following frequencies: H o : p A = 0.3 ; p B = 0.1 ; p C = 0.1 ; p D = 0.5 Complete the table. Report all answers accurate to three decimal places. Category Observed Frequency Expected Frequency A 50 B 38 C 19 D 66 What is the chi-square test-statistic for this data? χ 2 = What...
You wish to test the following claim (Ha) at a significance level of a 0.005. Ho: μ-68.2 Ha: μ > 68.2 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n 30 with a mean of M 78.9 and a standard deviation of SD -14.7 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value- What is the test statistic for...
You wish to test the following claim at a significance level of α=0.10α=0.10. You wish to test the following claim at a significance level of a = 0.10 Ho:p = 0.82 H1:2 +0.82 You obtain a sample of size 588 in which there are 492 successful observations. What is the test statistic for this sample? (Report answer accurate to 3 decimal places.) What is the p-value for this sample? (Report answer accurate to 4 decim al places.) Questions ► Q...
You wish to test the following claim at a significance level of 0.001. Due Sun 11/10/2019 11:59 pm You wish to test the following claim at a significance level of 0.001. HO: L = 66.9 H1:> 66.9 You believe the population is normally distributed, but you do not knowthe standard deviation. You obtain a sample of size 63 with a mean of 72.2 and a standard deviation of 16.3. What is the critical value for this test? (Report answer accurateto...
You wish to test the following claim (H) at a significance level of a - 0.005. Ha:PI P2 You obtain 41.8% successes in a sample of size n2 536 from the second population. For this test, you should NOT use the continuity correction, and you should use the normal distribution as an approximation for the binomial distribrn sarmple of size ni = 694 from the first population. You obtain 31% successes in a What is the test statistic for this...
You wish to test the following claim at a significance level of α=0.05α=0.05. You wish to test the following claim at a significance level of a = 0.05. Ho:P = 0.68 H1:P < 0.68 You obtain a sample of size n = 418 in which there are 258 successful observations What is the critical value for this test? (Report answer accurate to 2 decim al places.) What is the test statistic for this sample? (Report answer accurate to 3 decim...
The sample data consist of 23 houses from a specific city yielded the average house price $226,460 and the standard deviation of the house price $11,500. Use a significance level 0.01 to test whether the mean house price of the whole city is more than $220,000. Compute the value of the test statistic, and P-value for the specified hypothesis test and state your conclusion. Assume the house prices of this city follows normal distribution. Question 2 options: Test statistic: t...
You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. H0: μ = 15 Ha: μ ≠ 15 A sample of 50 provided a sample mean of 14.09. The population standard devlation is 3. (a) Find the value of the test statistic. (Round your answer to two decimal places.) (b) Find the p-value. (Round your answer to four decimal places.) (c) At a = 0.05, state your conclusion. Reject H0. There is sufficient evidence to conclude that...