What Does It Mean to Be Statistically Significant?
Read this topicExplanations 6
- Statistics is the art of using knowledge that we're absolutely sure of to make very good guesses about things which we don't know. When something is Statistically Significant, i…
By Tom Vielott, Anusha Rahman
- Statistical Significance We use statistics to differentiate between strong relationships and random noise in data. We can measure the strength of a relationship by finding the s…
By Hannah Bonville, Alex Federspiel, Sarah Walker, Jonathan Heller, Anusha Rahman
- When are the results of my experiment "statistically significant" according to p-value? Getting straight to the point, P-value < α\alphaα→ Reject the null hypothesis (statistica…
By Paris, Anusha Rahman
- What is statistical significance and how do I know if my results are statistically significant? In principle, a statistically significant result is a result that did not occur d…
By Paris
- Central Tendency: Statistical Significance Oftentimes, when we are working with variables, their relationships, and statistics, we want to understand whether a relationship betw…
By Anusha Rahman
- Statistical Significance by Data Demystified This video by Data Demystified goes over statistical significance and ppp-values. Summary In science, we can never truly prove anyth…
By Anusha Rahman
Problems 38
- True or False\text{True or False}True or False === When a value is statistically significant, then it is as equally likely to have nearby points than a point that is not statist…
- The graph above shows how fast a person solved a Rubik's Cube. Which point is not statistically significant?
- In the data above, who is not statistically significant?
- Anna is a music therapy student and wanted to know what type of music impacted someone's mood the most. The above data lists the p values for each type of music studied. Which t…
- We want to be 99% sure that our study results are not due to random chance (this means our [α\alphaα] "alpha" is 0.01). If the p-value from the study is 0.02, is our experiment …
- We want to be 95% sure that our study results are not due to random chance (this means our [α\alphaα] "alpha" is 0.05). If the p-value from the study is 0.001, is our experiment…
- We want to be 90% sure that our study results are not due to random chance (this means our [α\alphaα] "alpha" is 0.10). If the p-value from the study is 0.5, is our experiment s…
- A cosmetics company is industry the effect of a lipstick's color on the customer's desire to buy it. Above are the ppp-values of each color tested. Which lipsticks do NOT have a…
- An advertising company is studying what makes certain makeup artists and influencers on Instagram have a lot more followers than others. Below are a list of possible factors the…
- An advertising company is studying what makes certain makeup artists and influencers on Instagram have a lot more followers than others. Below are a list of possible factors the…
- A record label is trying to find out what makes an artist sell more concert tickets. Which of the factors below would have the lowest ppp-value?
- A record label is trying to find out what makes an artist sell more concert tickets. Which of the factors below would have the highest ppp-value?
- What is the importance of ppp-values?
- A local gym is trying to improve their membership sales. They surveyed 1,0001,0001,000 people to try to find the main reasons people go to the gym. They grouped similar response…
- Consider the data set below: a,b,c,d,ea, b, c, d, ea,b,c,d,e If... pa>pb>pc>pd>pep_{a}>p_{b}>p_{c}>p_{d}>p_{e}pa>pb>pc>pd>pe Which value in the set would be considered the …
- Consider the data set below: a,b,c,d,ea, b, c, d, ea,b,c,d,e If... pa>pb>pc>pd>pep_{a}>p_{b}>p_{c}>p_{d}>p_{e}pa>pb>pc>pd>pe Which value in the set would be considered the …
- Which of the following statements are true?
- Which of the following statements are true?
- After conducting a hypothesis test your p-value is less than your alpha. Was your test statistically significant?
- If your hypothesis test results in a p-value of 0.5 and your alpha is 1% (0.01) is your test statistically significant?
- If your hypothesis test results in a p-value of 0.40 and your chosen alpha is 0.10, is your test statistically significant?
- Does statistically significant mean that your null hypothesis or alternative hypothesis is more likely to occur?
- True or False\text{True or False}True or False === Rejecting the null hypothesis means the results of our hypothesis test were statistically significant.
- Does failing to reject the null hypothesis mean the results of our hypothesis test were statistically significant?
- If your hypothesis test results in a p-value of 0.005 and your alpha is 1% (0.01) is your test statistically significant?
- If our hypothesis test results in a p-value of 0.04 and our alpha is 5% (0.05) do we reject the null hypothesis and are our results considered statistically significant?
- If we have sufficient evidence to reject the null hypothesis, is our result also then considered statistically significant?
- If your hypothesis test results in a p-value of 0.06 and your alpha is 5% (0.05) is your test statistically significant?
- If our hypothesis test results in a p-value of 0.12 and our alpha is 10% do we FAIL to reject the null hypothesis and are our results considered statistically insignificant?
- If our hypothesis test results in a p-value of 0.11 and our alpha is 10% (0.1) are our results considered statistically significant?
- True or False\text{True or False}True or False === When there is enough evidence to reject the null hypothesis (H0H_0H0), the alternative hypothesis (HAH_AHA) is said to be st…
- True or False\text{True or False}True or False === You can accept a null hypothesis given information about a p-value and alpha value.
- True or False\text{True or False}True or False === When something is Statistically Significant, it is so unlikely that an error occurred due to random chance it might as well be…
- True or False\text{True or False}True or False === You can determine whether or not a result is statistically significant with a p-value and and alpha value.
- True or False\text{True or False}True or False === Statistical significance means that your results could have a significant impact on the world.
- True or False\text{True or False}True or False === Rejecting the null hypothesis means we accept the alternative hypothesis.
- True or False\text{True or False}True or False === If there is a reasonable chance that your results from a hypothesis test are due to random chance, our results are NOT statist…
- After conducting a hypothesis test your p-value is greater than your alpha. Was your test statistically significant?