What is the alternative hypothesis for the Durban Watson Test? Ha: The Data is not autocorrelated. O Ha: All of the slopes are equal to zero. O Ha: The Data is autocorrelated. O Ha: At least one of the slopes is equal to zero.
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- The accounting department analyzes the variance of the weekly unit costs reported by two production departments. A sample of 16 cost reports for each of the two departments shows cost variances of 2.3 and 5.4, respectively. Is this sample sufficient to conclude that the two production departments differ in terms of unit cost variance? Use ? = 0.10. State the null and alternative hypotheses. -H0: ?12 > ?22 Ha: ?12 ≤ ?22 -H0: ?12 ≠ ?22 Ha: ?12 = ?22 -H0: ?12 ≤ ?22 Ha: ?12 > ?22 -H0: ?12 = ?22 Ha: ?12 ≠ ?22 Find the value of the test statistic. (Round your answer to two decimal places.) statistic=?? Find the p-value. (Round your answer to four decimal places. Remember: When using WebAssign technology to find p-values, use the entire test statistic (not the rounded answer from the previous question.)) p-value = ?? State your conclusion. -Reject H0. We can conclude that there is a difference between the population variances. -Do not reject H0. We cannot conclude that…Please indicate the dependent and independent variables in the following hypotheses. People with higher education are more prone to read books than people with less education. Independent variable: Dependent variable:One group's measure of math anxiety following a stress management seminar (pre and post test scores). A. T-test independent samples B. T-test dependent samples C. One-way ANOVA D. Correlation E. Chi square F. Simple Regression
- A researcher wants to see whether it is significantly more likely or less likely that female elementary schoolteachers wear lipstick at work, and she wants to test the variable with a sample of 200 participants. Which procedure should she use? Mode Correlation O Two-way chi square One-way chi square GE AY 19 J étv A W MacBook Pro Q Search Default SearchQ3.3 Normal, but why? A meal package for use at the space station is to be prepared by combining three separate components: protein, fruit/vegetable, and grains. Each of the components is to be randomly selected. Summary values for the caloric content for each of the components are given in the table. Component Protein (P) Fruit/vegetable (F) Grain (G) Mean (calories) 120 55 84 Stdv (calories) 6.4 Save Answer 1.0 3.6 Assume that the distributions of caloric content for each of the components are approximately normally distributed. Since the meal package consists of protein, fruit/vegetable, and grains, the total caloric content of a meal package is the random variable T, where T = P + F + G. Briefly explain why it is appropriate to say that T is approximately normally distributed. Q3.4 Probability Less than 275 Calories On your own piece of paper find the approximate probability that a randomly selected meal package will have less than 269 calories? (Draw an appropriate diagram, find a…A solution of a differential equation that is free of arbitrary parameters is called a/an solution.
- K Winning team data were collected for teams in different sports, with the results given in the accompanying table. Use a 0.05 significance level to test the claim that home/visitor wins are independent of the sport. Given that among the four sports included here, baseball is the only sport in which the home team can modify field dimensions to favor its own players, does it appear that baseball teams are effective in using this advantage? Click the icon to view the data table. Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho: The home/visitor win is independent of the sport. H₁: The home/visitor win is not independent of the sport. OB. Ho: Basketball games are not more likely to win at home than any other sport. H₁: Basketball games are more likely to win at home than any other sport. OC. Ho: The home/visitor win is dependent on the sport. H₁: The home/visitor win is not dependent on the sport. OD. Ho: Basketball games are more likely to win at…Tinder and Online Dating: Everything Up to the Pearson Coefficient Which statistical test could be used to determine if there was a relationship between the two variables, degree of narcissism and quality of jawline? a. z test b. single-sample t test c. paired-samples t test d. independent-samples t test e. one-way between-groups ANOVA f. one-way within-groups ANOVA g. two-way between-groups ANOVA h. Pearson Correlation CoefficientI know the answer between choice I) and choice II) is: I) But why is it choice I)?
- Describe a study in which you can use both nonparametric and parametric statistics. A researcher has participants expecting to receive either painful or mild electrical shocks during a study wait in a quarter-full waiting room with other participants. He then measures whether they choose to sit next to other participants or if they sit far away on their own. What is the best test to run for this study and why?Identify the dependent, independent variable, and controlled variable in each experiment. 1. A group of students was allowed to listen to music during a test while the other group was not. Test scores were then collected and compared.Independent: Dependent: Controlled: 2. Media attention is necessary for a candidate to succeed in a primary election.Independent: Dependent: Controlled:A researcher believe that increasing attention given to children will improve academic performance. He invites parents to volunteer during school to help the children with their activities. At the end of the school year he compares the academic performance of these children with the mean and standard deviation of historical rate on academic achievement. Which statistic test is appropriate for this study and why? (By using the decision tree). A. Z test B. Single sample t test C. Two independent samples t test D. Two related samples t test E. One way between subjects ANOVA F. Correlation