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:
1.5 million each year
Explanation:
In 2018 1.5million died that year from tuberculosis.
Answer:
Arctic islands were closer to the equator in the past.
Explanation:
Tropical plant fossils have been found in cold Arctic islands where they cannot survive in the present-day climate of this area. This is as a result of Pangea, since there were connection that exist between all landmasses and the equator for the past 200 billion years so the ancient tropical plants could survive Arctic islands very well because Arctic islands were closer to the equator in the past.
Answer:
The correct answer is B. Conditioned stimulus
Explanation:
A real estate agent showed Henry several pictures of lakeshore property while they were eating a delicious, mouth watering meal. Later, when Henry was given a tour of the property he drooled with delight. For Henry, the lakeshore property was a conditioned Stimulus.
In classical conditioning, the conditioned stimulus is a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.
Answer: Pneumonia but not leg injury
Explanation:
Accidents involving bones should be treated with urgency else the matter becomes complex as there is a delay and in most cases exposure the bone faces makes it more difficult to treat. The driver would have hurriedly taken the bicyclist to the hospital, so the bone issues could be attended to, his delay caused him more harm by exposing him to pneumonia and might make the bone injury difficult to treat.
