Question

Fill in the blanks:-

Ackerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or computer) tended to have lower quiz scores than students who studied the same material from printed pages. To test this finding, a professor identifies a sample of n = 16 students who used the electronic version of the course textbook and determines that this sample had an average score of M = 72.5 on the final exam. During the previous three years, the final exam scores for the general population of students taking the course averaged μ = 77 with a standard deviation of σ-8 and formed a roughly normal distribution. The professor would like to use the sample to determine whether students studying from an electronic screen had exam scores that are significantly different from those for the general population.
Assuimg a two-tailed test, state the null hypothesis in a sentence that includes the two variables being examined.
The null hypothesis states that ________________

Answer 1

The null hypothesis for the situation described would be that there is no significant difference in final exam scores between students who study from electronic screens and those who study from printed materials.

Step-by-step explanation:

The null hypothesis states that there is no significant difference between the final exam scores of students who studied using an electronic screen and the final exam scores of the general student population. In a two-tailed test, the null hypothesis is that the mean score for students studying from a screen (μ₁) is equal to the mean score for the general student population (μ₂), which can be written as μ₁ = μ₂. When conducting hypothesis testing, the goal is to determine if there is enough evidence to reject this null hypothesis in favor of the alternative hypothesis, which would state that there is a significant difference (μ₁ ≠ μ₂).