In a manufacturing process, the time for a particular drilling step is normally distributed with mean 55 seconds and standard deviation 12 seconds. What percentage of times are  less than 43 seconds? [fill1]  between 31 and 67 seconds? [fill2]

The p value for testing

Let the p value for testing   Vs.    be 0.018. Then for the same data the p value for   Vs.    is 

For each statement about hypothesis testing for the population mean, state if it is true or false. 

A company wants to study the proportion of job satisfaction among their employees. How many employees should be sampled if the company wants to be 99% confident with a margin of error no more than 4%? 

95% confidence interval for true proportion of drivers who pass the driver’s license test in their first attempt in a certain target population is (0.806, 0.872) based on a random sample of size 1000. What is the point estimate of the true proportion of drivers who pass the driver’s license test in their first attempt? [fill1] What is the correct interpretation of this interval? [fill2]

A real estate agent in a particular city randomly selects 20 townhouses. For this sample the mean and standard deviation of prices are $300,000 and $60,000. The agent believes that the townhouse prices are normally distributed. What is the 95% confidence interval for the true mean townhouse price in this city?

Here are tables you may need for this exam. (Click on the file name, not the downarrow to open the table within the spacer) Z table.pdf T_table.pdf

What is the focus of the “intention” component in mindful practice?

What does “acting with awareness” in mindfulness involve?