Suppose we sample 3 items from this population. Find the variables that correspond to the central 85% Confident Interval range of the sum of these 3 samples.

What is the name of the test used?

how do you find the Lower quartile when the median is two of the same number

Devise two scenarios where a dependent/matched/paired t-test would be appropriate.  Be sure to express how you would measure your dependent variable.

On average, a sample of n = 36 scores will provide a better estimate of the population mean than a sample of n = 49 scores from the same population.

Each year, marketing and information firm J.D. Power and Associates surveys new car owners 90 days after they have purchased their cars. The data collected are used to rate auto brands (Toyota, Ford, and others) on initial quality and initial customer satisfaction. USA Today reported both the number of manufacturing defects per 100 vehicles and a satisfaction score for all 33 brands sold in the United States.+ A research group decides to compare the mean number of defects for 2 specific models of cars, A and B, made this year by taking random samples of 100 cars of each model. USE SALT (a) After collecting the data, the research group calculates a 95% confidence interval to estimate the difference in population means. In this case, what is the population? O the defects O all cars made this year all cars for models A and B that were produced this year O the 100 cars from each model (b) Suppose the calculated confidence interval is (100, 104) number of defects. What is the value of the…

Explain the t-test as it relates to its application to one samples

Please answer all of the question in the pictures, Please. THank you.

please help!

Design your own within-subjects study. Remember to include your hypothesis, independent variable with at least 3 conditions, how long participants would spend in the conditions, and your dependent variable.