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1. The State Police are trying to crack down on speeding on a particular portion of the Massachusetts Turnpike. To aid in this pursuit, they have purchased a new radar gun that promises greater consistency and reliability. Specifically, the gun advertises ± one-mile-per-hour accuracy 98% of the time; that is, there is a 0.98 probability that the gun will detect a speeder, if the driver is actually speeding. Assume there is a 1% chance that the gun erroneously detects a speeder even when the driver is below the speed limit. Suppose that 95% of the drivers drive below the speed limit on this stretch of the Massachusetts Turnpike. a. What is the probability that the gun detects speeding and the driver was speeding? (Round your answer to 4 decimal places.) Probability b. What is the probability that the gun detects speeding and the driver was not speeding? (Round your answer to 4 decimal places.) Probability c. Suppose the police stop a driver because the gun detects speeding. What is the probability that the driver was actually driving below the speed limit? 2. Apparently, depression significantly increases the risk of developing dementia later in life (BBC News, July 6, 2010). In a recent study it was reported that 22% of those who had depression went on to develop dementia, compared to only 17% of those who did not have depression. Suppose 10% of all people suffer from depression. a. What is the probability of a person developing dementia? (Do not round intermediate calculations. Round your answer to 3 decimal places.) b. If a person has developed dementia, what is the probability that the person suffered from depression earlier in life?
single sample hypothesis testing z-tests1. for the population at large test scores on the wechsler intelligence scale
question 1 a gantt chart represents mainlyanswer an immediate identification of predecessor task. a record-keeping
amount of time spent studying each day for local and overseas students aspire llp is a recruitment agency. recently
An automobile manufacturer has problems with sticking accelerator pedals
1.multiple choice1 medical care and compensation costs for workers injured on the job vary and are strongly skewed. the
Aggregate Demand and Aggregate Supply
Use Markov's inequality to get an upper bound
To answer the question as to whether or not there is a difference in time to progression, a Chi square statistic is computed. The critical value for rejection of the null hypothesis is 3.84. The computed Chi square is 0.335.
Analysis of Variance SPSS instructions: Use the five steps of hypothesis testing to determine whether the observed differences in the number of activities in the following table performed by the three groups are statistically significant at the .05 l..
Critical Thinking
Produce a short report to update your manager on both the method and results of your analysis and the introduction od 'Six Sigma'.
find the correlation between anca and the clinical manifestations k l c gi msk n ent s. nbspwe want to find out which
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