Dok Thor wanted to know if there is association between whether the first child in the family is vaccinated andwhether both parents are vaccinated. The observed frequencies and expected frequencies in parentheses aregiven below.Vaccinated first born?YesNoTotalVaccinated both parents?YesO C. Fisher's exact test4 (3.5)1 (1.5)5O A. Chi-Square test of independenceO B. Chi-Square goodness of fit testNoO D. t-test on correlation coefficient10 (10.5)5 (4.5)15Total14Which of the following is the most appropriate test to answer his objective?620

It is given that the statement about to the hypothesis testing. Here, need to find out the correct…

Answered: Which of the following is the most…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Part of an R output relating X (independent variable) and Y (dependent variable) is shown below. This analysis is based on 11 observations. Using what you know about how all of these values are related, fill in the remaining blanks. Round your answers to 4 decimals in Model Summary box. Round your answers to 2 decimals in the ANOVA table and beyond. Model Summary (4 decimal places each) R R-Squared Adj. R-Squared Pred. R-Squared Source Regression Residual Total ANOVA (2 decimal places each, where necessary) Sum of Squares X Model (Intercept) 0.3632 0.515 1000 RMSE Parameter Estimates (2 decimal places each) Beta Coef. Var. df 29.48 5.7871 Std. Error Std. Beta 0.699 Mean Square -0.72 t F Sig. 3.79 0.0043 -3.091 0.0129 Sig 0.0129
I need help with all parts of this question 12
What conclusion would be appropriate for an upper-tailed chi-squared test in each of the following situations? USE SALT (a) a = 0.05, df = 4, x² = 13.25 O We would reject Ho. O We would fail to reject Ho. (b) a = 0.01, df = 3, x² = 8.55 We would reject Ho. O We would fail to reject Ho. (c) a = 0.10, df = 2, x² = 4.36 We would reject Ho. O We would fail to reject Ho. (d) a = 0.01, k = 6, x² = 12.80 O We would reject Ho. O We would fail to reject Ho.
For the following problem, provide the following: Test statistic p-value Interpretation of the results in the context of the problem Cases of UFO sightings are randomly selected and categorized according to month, with the results listed in the table below (based on data from Larry Hatch). Use a .05 significance level to test the claim that UFO sightings occur in the different months with equal frequency. Is there any reasonable explanation for the two months that have the highest frequencies? Month: 1 2 3 4 5 6 7 8 9 10 11 12 1239 1111 1428 1276 1102 1225 2233 2012 1680 1994 1648 1125
4. Given are x = 35, µ = 38, s = 10, n = 20, Determine the statistical test to be used. ール Test Statistic: Z =" Test Statistic: t = A. В. 5. Given are x = 90, µ = 88, o = 6, n = 100. Find the value of z. A. 3.33 B. - 3. 33
Professor Nord stated that the mean score on the final exam from all the years he has been teaching is a 79%. Colby was in his most recent class, and his class’s mean score on the final exam was 82%. Colby decided to run a hypothesis test to determine if the mean score of his class was significantly greater than the mean score of the population. α = .01. What is the mean score of the population? What is the mean score of the sample? Is this test one-tailed or two-tailed? Why?
(i) State the hyptheses. (ii) Sketch a scatter plot tat best represents the data. (iii) Compute the value of the correlation coefficient. Round the answer to at least three decimal places. (iv) Find the P-value. Round the answer to at least four decimal places. Test the significance of r at α=0.05. Determine whether to reject or not reject the null hypothesis.
Why is the Chi- square test applicable to the given scenario?
4. Which of the following is used in model fit comparisons? A. Alkaike Information Criterion test B. The R-squared adjusted C. The Bayesian Information Criterion D. All of the above 5. Dr. Musantu conducted an estimation between y (dependent variable) and x (independent variable) in Stata. He obtained 0.332 coefficient of x and standard error of 0.021. What is the value of the t-statistic? A. 14.809 01392 B. 15.809 C. 16.809 D. None of the above 6. Is the above regressor (in question 8) significant at 5% (which gives 1.96 critical values) level of significance? A. No B. Yes 7. In a log-log regression model, what does the slope coefficient measure? A. The elasticity or percentage change of y with respect to a percentage change in x. B. The change in y which the model predicts for a unit change in x. C. The change in x which the model predicts for a unit change in y. D. 100 multiplied by the ratio y/x. 0.021
Using an a = 0.05 significance level, what was the evidence for your answer to the previous question? O Because the p-value of the t-test for Experience is greater than 0.05, the analyst should not reject Ho: B₁ 0 so HA B10 is unsupported. This means that there is NO statistically significant relationship between Sales and Experience. = Because the p-value of the t-test for the Intercept is less than or equal to 0.05, the analyst should reject Ho: Bo 0 and accept HA Bo 0. This means that there is a statistically significant relationship between Sales and Experience. - O Because the p-value of the t-test for Experience is less than or equal to 0.05, the analyst should reject Ho: B1 = 0 and accept HA B1 0. This means that there is a statistically significant relationship between Sales and Experience. : O Because the p-value of the t-test for Experience is less than or equal to 0.05, the analyst should reject Ho: B1 = 0 and accept HA B1 0. This means that there is NO statistically…
You wish to test the following claim (H.) at a significance level of a = 0.001. For the context of this problem, Ha = 42 - 4i where the first data set represents a pre-test and the second data set represents a post-test. H.: Hd = 0 Ha:Ha + 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 40 subjects. The average difference (post - pre) is d = 2.8 with a standard deviation of the differences of sa = 19.9. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection…
• Question 10 You are doing a Z-test and get a Standardized Test Statistic (STS) of Z = 2. Round answers to 4 decimals. Find the P-value for a: a. two tailed test : b. right tailed test : aline a. left tailed test : Submit Question ver n Proctor Coom * Previous MacBook Air D00 D00 F4 F1 F2 F3 F5 F6 F7 F8 F9 @ # $ % & 3 4 5 6 7 8 9

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Which of the following is the most appropriate test to answer his objective? O A. Chi-Square test of independence O B. Chi-Square goodness of fit test O C. Fisher's exact test O D. t-test on correlation coefficient