Lesson 1: Probability of an Event What is it
Probability is the measure of how probable an event occurs. If each of th
space has an equal chance of occurring, then the probability of an event E, which
is
number of outcomes in the event n(E)
P(E)
number of outcomes in the sample space n(S)
Steps to find the theList the outcomes experiment (Sprobability:
1. ofample Space).
2. Count the number of all possible outcomes of the experiment (Sample Space
3. Count the favorable outcomes/ (Event).
. Use the formula.​

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).