Examlex
Online questionnaires are questionnaires which are administered online. Such questionnaires can be sent to respondents via e-mail, or respondents can be sent a link to the questionnaire which can be uploaded to a website, and invited to respond to the questionnaire. Response rates can be a substantial issue using online questionnaires.
Test Statistic
A value calculated from sample data during hypothesis testing, used to determine the probability of observing the sample data under the null hypothesis.
Null Hypothesis
A default statement that there is no significant effect or difference, subject to testing against an alternative hypothesis.
Alternative Hypothesis
A hypothesis that contradicts the null hypothesis, indicating there is a significant difference between two or more sets of data.
Production Cost
Represents the total expense incurred in manufacturing a product or providing a service, including raw materials, labor, and overhead costs.
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