Question

In: Economics

A statistically significant coefficient of 2 on average class size, K-3 implies: a)That raising class size...

A statistically significant coefficient of 2 on average class size, K-3 implies:

a)That raising class size by 2 is associated with a 1 point increase in test scores

b)That raising class size by 1 is associated with a 2 point increase in test scores

c)That raising class size by 2 is associated with a 1 point decrease in test scores

d)That raising class size by 1 is associated with a 2 point decrease in test scores

Solutions

Expert Solution

Option b

Here, test score is a dependent variable and class size is an independent variable. As, the coefficient of class size is positive 2, it indicates that for every one unit increase in class size, the test score increases by 2 units.

Rahul Sunny answered 2 years ago
Next > < Previous

Related Solutions

Determine whether the correlation coefficient is statistically significant at the specified level of significance for the...
Determine whether the correlation coefficient is statistically significant at the specified level of significance for the given sample size. r = 0.403, ? = 0.05, n = 25
Can a correlation coefficient be statistically significant? If so, what would be the null hypothesis be?...
Can a correlation coefficient be statistically significant? If so, what would be the null hypothesis be? Please provide good, clear detail as if you were trying to explain the information in detail but enough for a 12 year old to understand
Constant returns to scale implies that if N and K both increase by 3% that
  2. Constant returns to scale implies that if N and K both increase by 3% that       A) Output (Y) will increase by 3%.     B) Y/N will increase by 3%.     C) Y/N will increase by less than 3%.     D) the capital-labor ratio will increase by 3%. 4. Which of the following statements is always true?       A) Investment equals depreciation.     B) Investment equals the capital stock minus...
2. A researcher posted that based on a random sample they did not find statistically significant...
2. A researcher posted that based on a random sample they did not find statistically significant evidence that the proportion of people following appropriate distancing and mask guidelines was different than 0.50. a. State the null and alternative hypotheses. b. How many sides does this test have? c. Briefly explain what the researcher meant by “they did not find statistically significant evidence”. 3. To test the claim that the percentage of voters that voted in the last presidential election is...
2. A spring whose coefficient is k is compressed by length d and a block of...
2. A spring whose coefficient is k is compressed by length d and a block of mass m is placed right next to the end of the spring. When the spring is released, the block acquires a velocity and keeps on moving along a horizontal smooth surface until it reaches an inclined plane whose angle is θ and whose coefficient of friction with the block is μ. It travels up the inclined plane for a while before reaching maximum height....
Consider the series X∞ k=3 √ k/ (k − 1)^3/2 . (a) Determine whether or not...
Consider the series X∞ k=3 √ k/ (k − 1)^3/2 . (a) Determine whether or not the series converges or diverges. Show all your work! (b) Essay part. Which tests can be applied to determine the convergence or divergence of the above series. For each test explain in your own words why and how it can be applied, or why it cannot be applied. (i) (2 points) Divergence Test (ii) Limit Comparison test to X∞ k=2 1/k . (iii) Direct...
A SIS disease spreads through a population of size K = 30, 000 individuals. The average...
A SIS disease spreads through a population of size K = 30, 000 individuals. The average time of recovery is 10 days and the infectious contact rate is 0.2 × 10^(−4) individuals^(−1) day^(−1) . (a) The disease has reached steady-state. How many individuals are infected with the disease? (b) What is the minimum percentage reduction in the infectious contact rate that is required to eliminate the disease? (c) By implementing a raft of measures it is proposed to reduce the...
A SIS disease spreads through a population of size K = 30, 000 individuals. The average...
A SIS disease spreads through a population of size K = 30, 000 individuals. The average time of recovery is 10 days and the infectious contact rate is 0.2 × 10^(−4) individuals^(−1) day^(−1) . (a) The disease has reached steady-state. How many individuals are infected with the disease? (b) What is the minimum percentage reduction in the infectious contact rate that is required to eliminate the disease? (c) By implementing a raft of measures it is proposed to reduce the...
A small community college claims that their average class size is equal to 35 students. This...
A small community college claims that their average class size is equal to 35 students. This claim is being tested with a level of significance equal to 0.02 using the following sample of class sizes: 42, 28, 36, 47, 35, 41, 33, 30, 39, and 48. Assume class sizes are normally distributed. (NOTE: We need to assume that class sizes are normally distributed in order to use the t distribution because the sample size n=10 < 25, and the Central...
2.      Suppose a company wanted to know if there was a significant in the average income of...
2.      Suppose a company wanted to know if there was a significant in the average income of its male and female customers.  Develop a null and alternate hypothesis for such a problem and give a conclusion based on the p-value results of .04. Assume you are testing at the .05 level of significance. 3.      A company wants to know the useful life of a new revolutionary lightbulb it has just developed.  A mean of 64 of these bulbs revealed a mean useful life of...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT