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A bag contains 6 green marbles, 10 blue marbles, and 4 yellow marbles. What is the chance of drawing a green marble? If a green marble is drawn then placed back into the bag and a second marble is drawn, what is the probability of drawing a blue marble? Reduce fraction form.
At.01 significance level, is there difference in mean number of times men and women order take-out dinners in month? Determine the p -value?
Describe a 5-step hypothesis test for two variances for a particular claim related to a real life experience. You need to state the claim, define the null and alternate hypothesis
q1. a chi-square test for independence with 8 degrees of freedom results in a test statistic of 18.21. usingthe
If random samples, each with n = 9 scores, are selected from a normal population with µ = 80 and σ = 36, then what is the expected value for the distribution of sample means?
for University Y, M = 4, S2 = 1.5; and for University Z, M = 6, S2 = 2.5. What should you conclude? Use the .05 level. (a) Use the steps of hypothesis testing, (b) figure the effect size for the study.
What kind of probability uses sample spaces to find out numerical probability that event will happen?
Standard deviation of 12 years. Worker is stopped at random and asked to fill out questionnaire. Determine the probability that this worker is less than 30 old?
1. a random variable is binomially distributed with n 16 and pi .40. the expected value and standard deviation of the
children gender. a certain couple is equally likely to have either a boy child or a girl child. if the family has four
A researcher collected sample data for 17 women ages 18 to 24 . The sample had a mean serum cholesterol level (measured in mg/100 mL) of 188.8 , with a standard deviation of 5.5.
What happens to the expected return and standard deviation of returns of the portfolio in Part a if the following conditions exist?
Develop the hypothesis for a 3x3 factorial design (ANOVA). The experiment revolves around the effect of music and chocolate on words remembered. The first IV is the effect of music with 3 conditions
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