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A researcher wishes to conduct a study on the self-esteem levels of adolescents. She believes that male adolescents have higher self-esteem than female adolescents. Self-esteem test were administered to 50 randomly selected male and 50 female adolescents. (The maximum score possible was a 10.)
Males 1 3 6 5 1 10 8 10 1 9 8 10 5 10 10 2 6 7 7 2 7 8 5 7 6 7 2 3 8 4 10 9 10 2 2 6 2 9 8 9 1 4 4 5 10 6 7 2 10 9 6 9 9 4 2
Females 1 2 2 1 6 4 1 7 6 3 4 3 2 4 5 9 5 2 7 6 5 7 9 4 9 1 4 3 7 8 4 2 6 5 2 4 2 6 4 3 6 9 1 9 3 5 4 9 8 2 8 8 9 7 5. Do the results indicate that self-esteem is significantly higher on average for males at significance level of 0.01?
If sales is the variable you are trying to explain and you have 2 independent variables of color and price. The color coefficient is 100, and the price coefficient is -200.
Additionally, student should use graphing function to graph data and calculate regression equation.
The mean television viewing time for teens is 3 hours per day. Assume the population mean is 3 and the population standard deviation is known to be 1.2 hours.
Two cards are drawn successively and without replacement from an ordinary deck of playing cards. Compute the probability of drawing-- A heart on the first draw, a club on the second draw.
the diameters of grapefruits in a certain orchard are normally distributed with a mean of 5.96 inches and a standard
Without good measurement, statistical analysis is worthless." Do you believe it is an overgeneralization, or do you think it is accurate as written?
Find the 90% confidence interval for the mean, variance, and standard deviation for the price in dollars of an adult single-day ski lift ticket.
In-Home stability ratings of children and teenagers age 4 to 14 years who have been diagnosed with ADHD and who are being treated with neurotherapy differs from in-home stability ratings of children and teenagers age 4 to 14 years who have been di..
question a professor used data from last semesters statistics class to create a regression that predicts how students
Multiple regression analysis produced following regression equation: Y' = 427.2 - 4.58X1 - 14.83X2 + 6.10X3. Which statement is right based on this analysis?
If the standard deviation is 4.09, how large a sample is needed to get the desired information to be accurate within 0.53 decibels? Show all work.
What is the probability that at least one of the 40 shuttle missions scheduled over the next 5 years results in a critical-item failure?
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