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A researcher randomly assigns 12 participants to one of three weight-loss conditions (A-diet, B-exercise, C-medication). The researcher obtains the following data:
The researcher wants to test the null hypothesis that weight loss is equal under all 3 conditions. Conduct a one-way analysis of variance.
What is the values of SStotal?
write a function that calculates the average and range of every five observations in the dataset? if the number of
a car manufacturer is concerned about poor customer satisfaction at one of its dealerships. the management decides to
This problem related to Basic Statistics and it is about estimate the probability of finding automotive repair workers with weekly earnings between $445 and $455. The calculation has been given in the solution
Scores on the ACT test have a mean of 21.1 and a standard deviation of 4.8. which is relatively better: a score of 1840 on he SAT or a score of 26.0 on the ACT test? why?
Test the significant difference between Chi-square for attributes
the length of time it takes college students to find a parking spot in the library parking lot follows a normal
A jar of peanut butter contains 457 grams with a standard deviation of 10.7 grams. Assuming a normal distribution, find the probability that a jar contains less than 454 grams.
the life span of an electronic component that costs 100 is exponentially distributed with a mean on 10 years. the
what is the major difference between the dominance criterion and other decision-making criteria under
The federal government recently granted funds for a special program designed to reduce crime in high-crime areas. A study of the results of the program in eight high-crime areas of Miami, Florida, yielded the following results.
Suppose we have a ""black box" which on command can generate the value of a gamma random variable with parameters 1.5 and 1. Explain how we can use this black box to approximate
a student believes that no more than 20 of the students who finish a statistics course get an a. a random sample of 100
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