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Question: The resistance for resistors of a certain type is a random variable X having the normal distribution with mean 9 ohms and standard deviation 0.4 ohms. A resistor is acceptable if its resistance is between 8.6 and 9.8 ohms.
(a) What is the probability that a randomly chosen resistor is acceptable?
(b) What is the probability that out of four randomly and independently selected resistors, two are acceptable?
construct a grouped frequency distribution for the data given below184 174 180 172 184 175 180 178 183 180173 180 182
What are the W s: Who, What, When, Where, Why?- What population does the researcher think the study applies to?
an automated blood-pressure machine correctly classifies 87 of hypertensives as having hypertension high blood pressure
assume that a procedure yields a binomial distribution with a trial repeated n times. use the binomial probabilities
(c) For each sample, construct a standard 95% confidence interval for the population mean. What is the actual coverage probability for the method with this population and design?
Keno Keno is a favorite game in casinos, and similar games are popular with the states that operate lotteries. Balls numbered 1 to 80 are tumbled in a machine.
Explain why it is not appropriate to test his hypothesis using the chi-square goodness-of-fit ?2 test - uniform distribution of miles across the days
Psychology and Human Behavior In attempting to flee from police, criminals often barricade themselves inside a building and create a police standoff.
Flow rate was monitored for a week, and the following values were recorded as gal/min: 10.1, 12.2, 9.7, 8.8, 11.4, 12.9, 10.2, 10.5, 9.8, 11.5, 10.3, 9.3, 7.7, 10.2, 10.0, and 11.3.- Find the mean and the standard deviation for these data.
Criticize the following definitions in light of the eight rules for lexical definitions:- Animal: a living creature corporeal, distinct, on the one side, from pure spirit, on the other, from pure matter. (Johnson's Dictionary)
Refer to the following experiment: Urn A contains four white and six black balls. Urn B contains three white and five black balls.
a financial investment increased in value by 33.1 after one year and then its value remained flat no change the next
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