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A machine produces ball bearings is set so that the average diameter is .50 inch. A sample of 10 ball bearings was measured with the results shown here. Assuming that the standard deviation is .05 inch, can we conclude at the 5% significance level that the mean of the diameter is not .5 inch? .48 .50 .49 .52 .53 .48 .49 .47 .46 .51
Determine the 95% confidence interval for true percent of car owners in this city who received the speeding ticket this year. Explain your results to nearest hundredth of percent.
Evidence of statistical interaction or effect modification. What is the odds ratio for diabetes in a man aged 65 compared with a woman aged 60 (both have the same waist circumference)?
For the period from 1918 to the present, in a random sample of 9 wolves spotted in the region, what is the probability that 6 or more were male.
when 100 students took a test the average score was 77.1. two more students took the test. the sum of their scores was
let x denote the number of times a certain numerical control machine will malfunction 1 2 or 3 times on any given day.
Apply Scheduling Theory in order to optimize a schedule of events and reduce lost productivity
suppose a sample of 10 observations is taken from a population with a normal distribution. the sample mean is
For any hypothesis test, if the value of a parameter being tested falls outside the confidence interval for the same level of a, the correct decision is to reject the null hypothesis. Is this True or False?
1. Consider the following data on distances traveled by people to visit the local amusement park.
Let the null hypothesis be the landlord association claim and the alternative hypothesis be the housing authority claim. Doe the data support the landlord's association claim? What would you report to the housing authority?
to monitor complex chemical processes chemical engineers will consider key process indicators which may be just yield
Many people attend work and produce little or nothing of value that is why they are terminated.
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