3. From a population known to have a standard deviation of 1.4, a sample of 70 individuals is taken. The mean of this sample is found to be 6.2. Find the standard error of the mean. Also establish an interval estimate around the sample mean using one standard deviation of the mean.

### Recently Asked Questions

- Consider the reaction. Determine the standard enthalpy of formation of NF3

- Who is right – the proponents of platform-based peer production systems (Uber, Deliveroo) or those who claim they are ‘inherently unethical’? Critically

- It is said “Everything is negotiable.” You are the Procurement officer for a manufacturing company and given a purchase requirement to buy and support 10