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The time to complete a manual task in a manufacturing operation is considered a normally distributed random variable with mean of 0.50 minute and a standard deviation of 0.05 minute. Find the probability that the average time to complete the manual task, after 49 repetitions, is less than 0.465 minute
Pprobability is no greater than 1% that the day's supply is exhausted. How many pounds of ground beef should the manager have available for use each day?
What are the most important concepts you have learned from conduct one-and two-sample tests of hypotheses? What would you recommend to your management/leadership based conduct one-and two-sample tests of hypotheses?
A test statistic is computed from sample data in hypothesis testing and is used in making a decision about whether or not to reject the null hypothesis. True or False
What is d, the difference between any 2 terms? Using the formuls for the nth term of a arithmetic sequence, what is 101st term?
A professor want to know how students feel about gun control, so he surveys his students asking %60Are you in favor or opposed to gun control.%60 All of his students respond. What is the major source of possible bias in this study?
The director of a state agency believes that the average starting salary for clerical employees in the state is less than $30,000 per year. To test her hypothesis
Surface area of a cube. The formula A = 6V^-2/3(-2/3 power) gives the surface area of a cube in the volume V. What is the volume of a cube with a surface area 12 square feet?
The Federal Government is stepping up efforts to reduce average response times of fire departments to fire calls. The distribution of mean response times to fire calls follows a normal distribution with a mean of 12.8 minutes and a standard deviat..
When is it important to have matched pairs rather than two independent sets of data?
A state transportation official claims that the mean waiting time at exit booths from a toll road near the capitol is no more than .40 minutes. for a sample of 35 motorists exiting the toll road, it was found that the mean waiting time was .46 min..
A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.
What kind of probability uses sample spaces to find out numerical probability that event will happen?
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