If you run a simple regression of growth on trade share, the R-squared suggests that:None of the above.Trade share explains 12% of the variation in growth across countries.Trade share explains 88% of the variation in growth across countries.Trade share explains 1.79% of the variation in growth across countries. The reason why estimators have a sampling distribution is that:ooooEconomics is not a precise scienceIn real life you typically get to sample many timesIndividuals respond different to incentivesThe values of the explanatory variable and the error term differ across samples.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Textbook: Statistics for the Behavioral SciencesGregory J. Privitera Please show your work-Concept and Application Problems (Pg.133) State whether each of the following will increase, decrease, or have no effect on the population variance. The sum of squares (SS) increases. The sample size decreases. The size of the population increases.
kouenbesy 4) 2. Kouen ba (0) TEACHER Look at the two histograms below. Each involves the same number of data. The data are all whole numbers, so the height of each bar represents the number of values equal to the corresponding midpoint shown on the horizontal axis. Notice that both distributions are symmetric. 3. 3. 2 1. 1. 5 4. 5. 9 9. 7. 8 8. (a) Estimate the mode, median, and mean for each histogram. (!) mode Enter an exact number. median mean = 7. (b) Which distribution has the larger standard deviation? Why? O Distribution (i), because more of the data are farther from the mean. Distribution (ii), because more of the data are farther from the mean. Distribution (i), because more of the data are closer to the mean. Distribution (ii), because more of the data are closer to the mean. Need Help? Read It
Which of the following are reasons that a sampling technique may not be scientific. Choose all that apply. The sample size is too small Self-Selected Sample The sample is not representative of the population The sample statistic is not exactly equal to the population parameter The wording of survey question influences the response
If variances are unequal, you pool the variances Typed answer will be automatically saved. X, X S2- Write your response here...
Textbook: Statistics for the Behavioral SciencesGregory J. Privitera Please show your work-Concept and Application Problems (Pg.133) If Sample 1 has a variance of 4 and Sample 2 has variance of 32, can we tell which sample had a larger range? If so, which sample had a greater range?
Which of these statements is true? Group of answer choices The p-value is determined by the test statistic and the critical value is determined by the significance level The p-value is determined by the significance level and the critical value is determined by the test statistic.
Choose all of the correct responses that answer the following question. What is the purpose of using random sampling (as opposed to non-random sampling) when we want to use a sample to learn something about a population? Random sampling produces a distribution that tends to have equal (proportional) representation from all groups. Random sampling allows the researcher to choose those individuals that will best represent the population. Random sampling allows everyone in population equal opportunity of being selected. O Random sampling avolds sampling bias and produces a sample that represents the patterns found in the population. Random sampling allows the researcher to convenlently gather participants that are easy to access
The frequency distribution below shows the amount of time the 50 randomly selected students spend playing video games daily. Complete the table below. Show your solutions and answer the given questions. Number of Frequency minutes (f) Lower boundaries (LB) Less than cumulative frequency (< cf) 151-180 4 121-150 9 91-120 16 61-90 10 31-60 9 1-30 2 i = 30 N=50 1. How many students belong to the upper quartile? 2. Find the 5th decile. Interpret the result. 3. Solve for P80. Interpret the result.
missing word on the right is "child" One study shows that a neglectful parenting style is related to more aggressive behavior in children, but that this relationship depends on the child's temperament. If the d has a negative temperament, the relationship is stronger. What multivariate relationship is involved here? O Interaction effect O Direct and indirect effects O Spurious relationship O Simpson's Paradox
Directions: Complete the following statements 1. The level of significance is denoted by 2. When the alternative hypothesis is two-sided, it is called, 3. When the given statistics hypothesis assumes a less than or greater than value, it is called 4. The rejection region (or critical region) is the set of all values of the test statistic that cause us to 5. Rejecting the null hypothesis when it is true results to what type of error?
Which of the following indicates that the use of a two-sample zz-interval for a difference in population proportions is appropriate? Two populations of interest exist. The variable of interest is categorical. The intent is to estimate a difference in sample proportions. I only A II only B III only C I and II only D I, II, and III E
The mean is less than the median. This histogram is negatively-skewed. O The mean is less than the median. This histogram is positively-skewed. O The median is less than the mean. This histogram is negatively-skewed. QUESTION 13 The distributions of income in the United States is strongly skewed to the right. Which of the following is true? O The median income is smaller than the mean income. O The median income is larger than the mean income. O The median income is equal to the mean income. O There is not enough information to compare the median and mean values. QUESTION 14 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Worksheet Py....docx Reading - Ma W MLK Letter -2.pdf Worksheet - W....docx W Anom doon MOS nI DIC. étv 11

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The reason why estimators have a sampling distribution is that: |0|0|0| Economics is not a precise science O In real life you typically get to sample many times Individuals respond different to incentives O The values of the explanatory variable and the error term differ across samples.