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Ace Machine Works estimates that the probability its lathe tool is properly adjusted is 0.8. When the lathe is properly adjusted, there is a 0.9 probability that the parts produced pass inspection. If the lathe is out of adjustment, however, the probability of a good part being produced is only 0.2. A part randomly chosen is inspected and found to be acceptable. At this point, what is the posterior probability that the lathe tool is properly adjusted?
A researcher is comparing two antihypertensive drugs A and B with regards to reduction of patient's systolic blood pressure (SBP). Baseline SBP is measured for two groups of patients.
The regression line yˆ2 = 3 + 2x has been fitted to the data points (4,8), (2,5), and (1,2). The residual sum of squares will be:
Individual loss amounts (ground up) this year follow an inverse Weibull distribution with τ= 3 and expected value 1000. Next year you con?fidently expect loss amounts to in?ate by 10% uniformly across the board.
Determine the probability that the project will be completed in 80 days or less.
Two types of flares are tested for their burning times (in minutes) and sample results are given below.
What is the point estimate of the proportion of the population of employees who strongly dislike their current work experience (to 2 decimals)?
Which of the given is the example of a discrete random variable? Which of the given is an example of continuous random variable?
Construct a 96% confidence interval for the mean weight of all firefighters six months after the exercise rooms were installed.
Which of the following exam scores should lead to the better grade?
A brand name has a 60% recognition rate. If the owner of the brand wants to verify that rate by beginning with a small sample of 10 randomly selected consumers, find the probability that exactly 6 of the 10 consumers recognize the brand name.
Estimating the individual score using normal distribution and find the minimum SAT score needed to be accepted?
A doctoral student is designing a research study. She is hoping that the results of the study are statistically significant. What type of p-value would she want to obtain? Select one of the following.
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