A class consists of 17 women and 65 men. If a student is randomly selected, what is the probability that the student is a woman?

Q: In an experiment, there are two boxes. Each box contains balls as shown in Table 2. The event is two…

A: Given Information:There are two boxes.Probability of selecting the first box P(Box 1) is…

Q: Eric has a job at an electronics store in a mall. Eric doesn't like to work hard, and it costs him…

A: We are going to calculate Net gains in both states to answer this question correctly

Q: The following table gives the joint probability distribution between employment status and college…

A: Unemployment is a situation in which individuals in a society are willing to work but not get any…

Q: A large consumer goods company ran a television advertisement for one of its soap products. On the…

A: The measure which depicts how likely an event would tend to either happen or not happen is known as…

Q: The following table shows the number of students at a college who were offered teaching positio…

A: Given: The formula to compute the probability is: Probability=Number of favorable outcomesTotal…

Q: You work at a mechanic shop.  40% of cars that come in have a flat tire.  If there are 50 cars in…

A: Given, Probability- 40% No of cars- 50 To find- probability of 30 cars to have flat tires

Hypothesis Testing

In statistics, there are two ways to calculate the sample data. One is descriptive statistics and the other is inferential statistics.  In descriptive statistics, all of the information is defined through graphs and charts. In inferential statistics, it allows one to test the hypothesis and it is always used to predict the data. Inferential statistics has two main areas: estimating parameters and hypothesis testing. A hypothesis is a statement about the unknown parameter of the population which we want to verify from the information available from the sample. The premise may or may not be true. The estimation of the whole population would be a reasonable way of deciding if the statistical hypothesis is valid. There are two types of hypotheses. They are null hypothesis and alternative hypothesis.