3 = 0.12 4 = 0.12 5 = 0.12 If you were asked to find the average score for those five items, you wouldn’t even have to do the math: it’s just 0.12, right? Finding the mean for a binomial distribution is just a little different: you add up all of the proba...
When you don’t know anything about a population’s behavior (i.e. you’re just looking at data for a sample), you need to use the t-distribution to find the confidence interval. That’s the vast majority of cases: you usually don’t know population parameters, otherwise you wouldn’t...
This is also the time to find out more about the type of clothing you are planning to produce and get to know all your competition. Talk to experienced professionals, find out what people are looking for and identify the gaps in the industry that you can fill. Competition is fierce and y...
Support: Is the website builder’s support team known for its responsiveness? Research beforehand to ensure a premium subscription will also provide premium support. No matter what, always start with a free trial. I enjoy using free plans or trials to create a generic “test” website. This...
They were then presented with a choice to wait (for an unspecified period of time) if they wanted to find out more about the book. A wait time between 3 and 6 s was imposed if they chose “yes”, such that seeking information about the book was associated with a temporal cost (...
Maintain consistent audio levels: Use audio normalization or manually adjust levels for a smooth listening experience. Aim for an average of -12 to -6 dB. Color correct your footage: Even basic color adjustments can greatly improve the look of your video. Start with white balance, then adjust...
Rats and other animals need to be highly at tuned to social signals from others so that can identify friends to cooperate with and enemies to avoid.To find out if this extends to non-living beings,Loleh Quinn at the University of California,San Diego,and her colleagues tested whether rats ...
shoppers to enter their stores, there are ways you can nudge visitors toward adesired action on your website. When people take the action you want them to online, it boosts your website conversion rate. But did you know that the average website conversion rate across industries hovers around...
Thez-valueis found in aZ table. Cochran’s Formula Example Suppose we are doing a study on the inhabitants of a large town, and want to find out how many households serve breakfast in the mornings. We don’t have much information on the subject to begin with, so we’re going to assu...
Money can be tainted when it is associated with direct or indirect harm to others. Deciding whether to accept “dirty money” poses a dilemma because money can be used to help others, but accepting dirty money has moral costs. How people resolve the dile