A non-statistical question will collect data that is exact and has only one respone. What is not a statistical question? A question that does not provide a variety of answers is not a statistical question. For example, 'how many siblings do I have?' is not statistical. The answer will ...
statistical language modelsquestion answeringQuestion–answering systems make good use of knowledge bases (KBs, e.g., ) for responding to definition queries. Typically, systems extract relevant facts from articles regarding the question across KBs, and then they are projected into the candidate answers...
If you have one small set of data (under 30 items), you’ll want to use thet-distributioninstead of thenormal distributionto construct your confidence interval.Example Question: A group of 10 foot surgery patients had ameanweight of 240 pounds. The samplestandard deviationwas 25 pounds. Find...
Statistical discrepancy, which by definition represents errors and omissionsA. cannot be calculated directly.B. is calculated by taking into account the balance-of-payments identity.C. probably has some elements that are honest mistakes, it can't all be money laundering and drugs....
The formula to find the standard deviation for a binomial distribution is: Example question: Find the standard deviation for the following binomial distribution: flip a coin 1000 times to see how many heads you get. Identify n and p from the question. N is the number of trials (given as...
1. Run surveys and collect results from the Ultimate Question. Start by asking: “On a scale of 0-10, how likely are you to recommend our product/service to a friend, colleague, or family member?”. The way that you ask the question, and the frequency anddesign of your NPS surveys,...
Stapel scale is defined as a rating scale that is close-ended with a single adjective (unipolar), developed to gather respondent insights about a particular subject or event. The survey question is comprised of an even number of response options without a neutral point. For example, these opt...
A meta-analysis, sometimes referred to as a meta-analysis study, can be defined as a type of research which uses a statistical approach to combine the findings of numerous empirical studies into a summary study of available data on the given topic. Meta-analytical studies are often used when...
The amount of consumer surplus that a cus- tomer can enjoy can only be assessed at the point of sale; it is at this point that the customer knows the selling price and can evaluate the product in relation to competing offerings, and decide then whether it is worth buying. Customers can ...
flat normal distribution and a flat Student’s t-distribution for priors on two parameters, because tornado research was, at the time of their 2019 studies, not on a solid statistical foundation (disclaimer: I’m not sure whether that has changed, but tornados are beyond my area of expertise...