b-1. Calculate the value of the test statistic. Assume that o? = 4.9 and op? = 5.9. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)
Compound Probability
Compound probability can be defined as the probability of the two events which are independent. It can be defined as the multiplication of the probability of two events that are not dependent.
Tree diagram
Probability theory is a branch of mathematics that deals with the subject of probability. Although there are many different concepts of probability, probability theory expresses the definition mathematically through a series of axioms. Usually, these axioms express probability in terms of a probability space, which assigns a measure with values ranging from 0 to 1 to a set of outcomes known as the sample space. An event is a subset of these outcomes that is described.
Conditional Probability
By definition, the term probability is expressed as a part of mathematics where the chance of an event that may either occur or not is evaluated and expressed in numerical terms. The range of the value within which probability can be expressed is between 0 and 1. The higher the chance of an event occurring, the closer is its value to be 1. If the probability of an event is 1, it means that the event will happen under all considered circumstances. Similarly, if the probability is exactly 0, then no matter the situation, the event will never occur.
![b-1. Calculate the value of the test statistic. Assume that o? = 4.9 and ag? = 5.9. (Negative values should be indicated by a minus
sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)
Test statistic](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2a733de9-c923-46b6-8a40-6074b2588661%2Fde30af06-594b-4a93-8a86-18578e43cb6a%2F9vylms_processed.jpeg&w=3840&q=75)
![A consumer advocate researches the length of life between two brands of refrigerators, Brand A and Brand B. He collects data
(measured in years) on the longevity of 40 refrigerators for Brand A and repeats the sampling for Brand B. These data are measured
in years. (You may find it useful to reference the appropriate table: z table or t table)
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