Question

of face masks claims that for their masks the Face masks used byf which pop out occurs is 550 f. A sample o s masks are tested and the average temperature at which the lens popped out was 47。F, Based on this infor mation is the manufacturer's dam vold? (a) Identify the population of interest to us in this problem all face masks O all face masks preduced by the manufacturer O ain face masks produced by the manufacturer during a selected period of time O all face masks in the sample (b) Would an answer to the question posed involve estimation or testing a hypothesis? O testing a hypothesis

Answer 1

Please don't hesitate to give a "thumbs up" for the answer in case you're satisfied with the answer

a. Population of the interest to us in this problem is :

-> all face masks produced by the manufacturer.

why? because claims are on the face mask manufacturer, so his product is under consideration

b.

Here we need to test whether the sample belongs to the population.

Hence, A. Testing a hypothesis is correct

It' not an estimation problem as we are not estimating anything.