Question

A manufacturer of soap bubble liquid will test a new solution formula. The solution will be approved, if the percent of produced parisons, in which the content does not allow the bubbles to inflate, does not exceed 5%. A random sample of 700 parisons contains 38 defective parisons.

Use the z-values rounded to three decimal places to obtain the answers.

(a) Formulate and test an appropriate set of hypotheses to determine whether the solution can be approved. Use α=0.05. Find the P-value.
Round your answer to three decimal places (e.g. 98.765).

P-value =

(b) Find a 95% upper confidence bound on p.
Round your answer to four decimal places (e.g. 98.7654).

p ≤ _______

Answer 1