It can be hard to find the perfect sample size for statistically sound results. Here we reveal methods and tools for effective sample size determination.
To increase the certainty of rejecting the null hypothesis, choose a lower significance level. For example, setting the significance level to 0.01 would require the p-value to be less than or equal to 0.01 to reject the null hypothesis. Refer to this rule of thumb to decide if ...
_gidRegisters a unique ID that is used to generate statistical data on how the visitor uses the website. Maximum Storage Duration: 1 dayType: HTTP Cookie Hotjar 3Learn more about this provider _hjSession_#Collects statistics on the visitor's visits to the website, such as the number of ...
Rising prices tend to increase a country’s GDP, but this does not necessarily reflect any change in the quantity or quality of goods and services produced. Thus, by looking just at an economy’s nominal GDP, it can be difficult to tell whether the figure has risen because of a real exp...
For example, items sorting into different dimensions may reflect an insufficient sample size or hint that the item is multidimensional—that is, highly connected to two or more dimensions. From this sampling distribution several statistics can be obtained. These include descriptive statistics, like the...
Learning to solve ill-defined statistics problems: does self-explanation quality mediate the worked example effect? Article Open access 15 March 2022 The Role of Mental Effort in Fostering Self-Regulated Learning with Problem-Solving Tasks Article Open access 09 July 2020 The...
There are 8 planets in the solar system (excluding Pluto). Taking Vioxx can increase your risk of heart problems (a drug now taken off the market). How do I State the Null Hypothesis? You won’t be required to actually perform a real experiment or survey in elementary statistics (or eve...
During the COVID-19 period, the travel behavior of urban residents has changed due to the influence of the virus and travel restriction measures, especially in public transportation. Travel by public transport increases the risk of being exposed to the virus, and the increase in private vehicles...
Could be acceptable, or could perhaps not be acceptable; that is a question for marketer and analyst to agree upon. No simple matter, but important. Suppose for example that an expectation of 10% increase in conversion would be realistic as well as commercially interesting: 4.0% original ...
secondary research of your market says that big corporations are relying less on agency work because they’re hiring in-house teams and you know there’s an increase in the number of new startups entering your market, then you can act accordingly and focus on providing better solutions to ...