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Demographics and Population Statistics
In Illinois, a typical DUI (Driving Under the Influence) offender is a 34-year-old male, arrested between 11 p.m. and 4 a.m. on a weekend, and has a BAC (blood alcohol content) of 0.16. Eighty-five percent of all drivers arrested in Illinois are first-time offenders. Suppose 40 people arrested for DUI in Illinois are selected at random.
a. What is the probability that at least 12 are first-time offenders?
b. What is the probability that between 7 and 10 (inclusive) are first-time offenders?
c. Suppose 4 of those arrested are first-time offenders. Is there any evidence to suggest that the proportion of first-time offenders arrested for DUI in Illinois has changed? Justify your answer.
This section mentioned a method for; a data object by lowering it in the tower of types as far as possible. Design a procedure drop that accomplishes this for the tower described in exercise 2.83. The key is to decide, in some general way, whether..
Create a scatterplot of Calories vs. Fat.- Interpret the value of R2 in this context.- Write the equation of the line of regression.
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Using the .05 level, do the results support the researcher's theory? (a) Use the steps of hypothesis testing, (b) sketch the distributions involved.
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Refer to the financial risk analysis example presented at the end of Sec. 22.6, including its results shown in Fig. 22.14. Think-Big management is quite concerned about the risk profile for the proposal.
The sums of squares were computed as SSW = 4773.3 and SSA = 591.2. Use the F test of ANOVA (assume α = 0.05) to decide whether or not there are any differences in true average lumen outputs between the three brands for this type of light bulb.
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