if an independent-measures study uses n = 15 participants in each group to compare two treatment conditions. then 28 is the df value for the t statistic for this study.
The t-statistic, which is used in statistics, measures how far a parameter's estimated value deviates from its hypothesised value relative to its standard error. Through the Student's t-test, it is utilised in hypothesis testing. In a t-test, the t-statistic is used to decide whether to accept or reject the null hypothesis. The t-statistic is used when the sample size is small or the population standard deviation is unknown. It is quite similar to the z-score in other respects. Once the standard deviation is unknown, the t-statistic is in use, for one, to approximate the population mean from a sampling distribution of sample statistics.
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Answer:
Explanation:
Spain's proximity to North Africa and its small land border with the Kingdom of Morocco (and Spanish colonial rule in North Africa, which lasted from 1912 to 1975) made the Muslim presence in Spain possible.
Cotton should be the crop that had the greatest impact in Georgia.
Answer:
Class room environment ( i.e the type of wall)
Explanation:
Here, it is given that the two identical courses are being taught to the students that means the course is not varying.
Also, the same researchers are teaching the students that means the researchers are also not variables.
Therefore, the only thing that is varying in the whole research is the class room environment i.e the the walls of the classrooms.
In the glass walls there will be more distractions while in the opaque walls it will not be much.
Therefore, the classroom environment is the independent variable in the research.
Answer:
In the past 26 years, owing to joint efforts of member countries, SAARC has made some progress, and a commendable achievement in reducing widespread poverty, strengthening energy cooperation, food security, promoting trade, improving social welfare, providing educational opportunities, increasing personnel exchanges.
