greate an 0.01. Question 4 Provide an appropriate response. A criminal trial can be compared to a hypothesis test. The hypotheses are as follows: Null hypothesis: The defendant is innocent Alternative hypothesis: The defendant is guilty Suppose that in one trial, if convicted, the defendant will receive the death penalty. Do you think that a significance level of 0.05 or 0.01 is more appropriate in this case? Why? 0.05. It is important to support the alternative hypothesis when the null hypothesis is false. 0.01. It is important to support the alternative hypothesis when the null hypothesis is false. 0.05. It is important to not support the alternative hypothesis when the null hypothesis is true. 0.01. It is important to not support the alternative hypothesis when the null hypothesis is true. Question 5 A hypothesis test is to be performed. State the null and alternative hypotheses. During one flu epidemic the proportion of adults nationwide who have come down with the flu is 8%. The manufacturer of a flu vaccine claims that those who have been vaccinated are less likely to catch the flu. Null hypothesis: percentage of those vaccinated catching the flu 8% Aiternative hypothesis: percentage of those vaccinated catching the flu <8%
Addition Rule of Probability
It simply refers to the likelihood of an event taking place whenever the occurrence of an event is uncertain. The probability of a single event can be calculated by dividing the number of successful trials of that event by the total number of trials.
Expected Value
When a large number of trials are performed for any random variable ‘X’, the predicted result is most likely the mean of all the outcomes for the random variable and it is known as expected value also known as expectation. The expected value, also known as the expectation, is denoted by: E(X).
Probability Distributions
Understanding probability is necessary to know the probability distributions. In statistics, probability is how the uncertainty of an event is measured. This event can be anything. The most common examples include tossing a coin, rolling a die, or choosing a card. Each of these events has multiple possibilities. Every such possibility is measured with the help of probability. To be more precise, the probability is used for calculating the occurrence of events that may or may not happen. Probability does not give sure results. Unless the probability of any event is 1, the different outcomes may or may not happen in real life, regardless of how less or how more their probability is.
Basic Probability
The simple definition of probability it is a chance of the occurrence of an event. It is defined in numerical form and the probability value is between 0 to 1. The probability value 0 indicates that there is no chance of that event occurring and the probability value 1 indicates that the event will occur. Sum of the probability value must be 1. The probability value is never a negative number. If it happens, then recheck the calculation.
Question 4
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