Use the following information to answer the question. Studies show that since the pandemic started, screen time has increased dramatically. Below is the R output produced from the data. If the significance level is 10%, what conclusion can you make? Group of answer choices A. We do not have enough evidence to conclude that screen time has changed since the pandemic. B. We do not have enough evidence to conclude that screen time has increased since the pandemic. C. We have enough evidence to conclude that screen time has changed since the pandemic. D. We have enough evidence to conclude that screen time has increased since the pandemic.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Use the following information to answer the question.
Studies show that since the pandemic started, screen time has increased dramatically. Below is the R output produced from the data.
If the significance level is 10%, what conclusion can you make?
![> t.test(screen_time, alternative = "greater", mu =
100)
One Sample t-test
data:
screen_time
t - 1.6815, df = 11, p-value = 0.06041
alternative hypothesis: true mean is greater than 100
95 percent confidence interval:
95.69051
Inf
sample estimates:
mean of x
163.3333](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3eef3fa2-7588-4200-8f03-cb5c77e99b9c%2F7a4cd803-9c9a-4b67-9f71-8c64218915bb%2F0z20hu8_processed.png&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Step by step
Solved in 2 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)