To determine whether the pipe welds in a nuclear power plant meet specifications, a random sample of welds is selected, and tests are conducted on each weld in the sample. weld strength is measured as the force required to break the weld. suppose the specifications state that mean strength of welds should exceed 100 lb/in2; the inspection team decides to test h0: μ = 100 versus ha: μ > 100. explain why it might be preferable to use this ha rather than μ < 100.

The explanation is shown below.

Step-by-step explanation:

Consider the provided information.

Here the required claim is whether the pipe welds in a nuclear power plant meet specifications or not.

It is given that mean strength of welds should exceed 100 lb/in².

This can be written as:  

So, the null hypothesis must be opposite of this

Which we can rewrite as

Alternative hypothesis is represent the claim, μ>100

So the null and alternative hypothesis should be respectively.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

this was already solved by me with a different person. if you look it up in the search bar at the top of the page, you will get the answer.

step-by-step explanation: