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Question: Geometric or not? Determine whether each of the following scenarios describes a geometric setting. If so, define an appropriate geometric random variable.
(a) A popular brand of cereal puts a card with 1 of 5 famous NASCAR drivers in each box. There is a 1/5 chance that any particular driver's card ends up in any box of cereal. Buy boxes of the cereal until you have all 5 drivers' cards.
(b) In a game of 4-Spot Keno, Lola picks 4 numbers from 1 to 80. The casino randomly selects 20 winning numbers from 1 to 80. Lola wins money if she picks 2 or more of the winning numbers. The probability that this happens is 0.259. Lola decides to keep playing games of 4-Spot Keno until she wins some money.
Keeping up with the Joneses. The Jones family had a household income of $30,000 in 1980, when the CPI (1982-84 = 100) was 82.4. The CPI for 2007 was 207.3.
a person has 8 friends but can only invite 5 to their birthday party. how many ways can she invite 5 friends if two of
Construct a scatterplot between sales and advertising expenditures - Provide a standard evaluation of the scatterplot.
Most municipalities provide the public with a variety of crime statistics, including types of crimes and class to the police.
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
scores on an endurance test for cardiac patients are normally distributed with mean185 and standard deviation5. a. what
Is this a small, medium, or large effect?- What proportion of the total variance was error variance?- List at least 10 things that might have contributed to the error variance in this study.
Consider the discrete random variable X that is uniformly distributed (equal probabilities) on the set {1, 2, . . . , 9}. You wish to generate a series of random observations xi (i = 1, 2, . . .) of X.
Ten years ago, an advertising agency took a random sample of 20 personal computer owners who used brands such as Dell, Gateway, Hewlett-Packard, etc. At the time, the agency recorded a satisfaction score, with a maximum of 100 possible points.
Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Use the normal distribution as an approximation of..
find the indicated probabilities using the geometric distribution or the poisson distribution. then determine if the
a. What is the independent variable and what are its levels? What is the dependent variable? b. Is this a between-groups or within-groups design? Explain.
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