Most researchers would like the hypothesis test to reject the null hypothesis.  True  False

Q: What do you need to be able to perform a hypothesis test?

A: Hypothesis testing: Hypothesis testing is the procedure of testing a claim about the population…

Q: Failing to reject the null hypothesis when it is false is

A: We need to use the concept of Hypothesis testing

Q: If we do not reject the null hypothesis when the alternative hypothesis is true, we have made a…

A: Fill in the required  blank

Q: When the p-value is used for hypothesis testing, the null hypothesis is rejected if p- value = 1-a B…

A:

Q: If we reject the null hypothesis, does this mean that we have proved it to be false beyond all…

A: The type I error is rejecting the null hypothesis when it is true. So, if we reject the null…

Q: When conducting a hypothesis test, the model used for the test     assumes the null hypothesis…

A: Null hypothesis:There is no difference between populations or a set of given…

Q: Why do we say “we fail to reject the null hypothesis” instead of “we accept the null hypothesis”?

A: Rejection rule: If p-value≤α, reject the null hypothesis. If p-value>α, fail to reject the null…

Q: If the null hypothesis is false and the researchers do not reject it, a Type I error has been made.…

A: We know that- Type I error- Rejecting the null hypothesis when it is actually true. Type II error-…

Q: Determine whether the statement is true or false. If it is false, rewrite it as a true statement. In…

A: The hypothesis is the statement regarding the parameter. There are two types of hypothesis- null and…

Q: When the null hypothesis is true, the F test statistic is false, the F test statistic is most likely…

A: Using the given information, the F-statistic value is 4.2.

Q: Describe about the decision to reject the null hypothesis is stronger than the decision to retain…

A:

Q: A decision to reject the null hypothesis means you have demonstrated that the treatment has no…

A: Given problem Given that   A decision to reject the null hypothesis means you have demonstrated…

Q: A type II error can only be committed if the null hypothesis is false. Otherwise, if the null…

A: The type II error is defined as accepting the null hypothesis when alternative hypothesis is true.

Q: Type I error is when you end up rejecting the null hypothesis as a result of the statistical…

A: Here we have to fill blank space of a given sentence "Type I error is when you end up rejecting the…

Q: The null hypothesis is always concluded as true, while the alternative hypothesis is always false…

A: Hypothesis testing is done to draw conclusions about a population parameter.

Q: Failing to reject a false null hypothesis is also called?

A: Errors: Reject null hypothesis when it is true is called type I error Not rejecting the null…

Q: Suppose that, in a hypothesis test, the null hypothesis is in fact true. a. Is it possible to make a…

A: Type I error:Probability of rejecting the null hypothesis when it is actually true.Type II…

Q: If the null hypothesis states H0: E(Y) = , explain the difference between a two-sided vs a one-sided…

A: The null and alternative hypothesis are two mutually exclusive statements about a population.

Q: When the p-value is used for hypothesis testing, the null hypothesis is rejected if _____.…

A: Definition: The p-value can be defined as the probability of obtaining a test statistic that is at…

Q: refrigerator manufacturer claims that the mean life of its refrigerators is greater than 13 years.…

A: Given A refrigerator manufacturer claims that the mean life of its refrigerators is greater than 13…

Q: What are the two decisions that you can make from performing a hypothesis test? What are the two…

A: 56. In the performing a hypothesis test  There are two decisions.   Decisions: If p-value≤ α Then…

Q: Descibe the difference between the null hypothesis and alternative hypothesis. How do we denote each…

A: In this question we have to explain the difference between null and alternative hypothesis and also…

Q: True or false If the p-value for a hypothesis test is greater than 0.01, we fail to reject the null…

A:

Q: Why do we test a null hypothesis instead of a research hypothesis

A: A hypothesis, in general, is an assumptions that is yet to be proved with sufficient pieces of…

Q: An example of a hypothesis that is not refutable. Why is it not refutable?

A: Refutable hypothesis is the one which proves the statement to be false or erroneous. Thus, not…

Q: A well known Maine canoe company claims to be favored by over 60% of white water canoeists. A…

A: The null and the alternative hypotheses are, H0: Maine canoe company is favored by less than or…

Q: If null hypothesis is really true, what does this indicate?

A:

Q: Suppose that, in a hypothesis test, the null hypothesis is in fact false. a. Is it possible to make…

A: Type I error:Probability of rejecting the null hypothesis when it is actually true.Type II…

Q: Why is the phrase “goodness of t” used to describe the type of hypothesis test considered in this…

A: In this section, the test is to check how well the observed frequencies match with the expected…

Q: The average person spends over 5 years of his or her life on social media. State the null and…

A: The average person spends over 5 years of his or her life on social media.  Here we use hypothesis…

Q: a. Is it possible to make a Type I​ error? Explain your answer. b. Is it possible to make a Type II​…

A: a. Is it possible to make a Type I​ error?   Answer:Option C) is correctYes, it is possible. A Type…

Q: given hypothesis​ test, explain the meaning of the kind of​ error, as requested.   A statistics…

A: In hypothesis testing, the type I error occurs when the null hypothesis (Ho) is rejected when it is…

Q: Come up with you own hypothesis testing scenario. What are examples of a null and research…

A: Suppose we have the age of the male and female of the city. and to find the claim that the mean age…

Q: State the null hypothesis

A: Solution Is  Null hypothesis is H0: sigma = 5 Alternative hypothesis is Ha: / sigma = 5

Q: Are you using a one-sided (directional) or two-sided (non-directional) alternative hypothesis?…

A: Given, Null Hypothesis               H0:μ=3  Alternative Hypothesis    H1:μ≠3

Q: Rejecting the null hypothesis when the null hypothesis is true is called

A: Rejection of the null hypothesis when it is true is called a type I error.

Q: Can hypothesis testing ever prove a hypothesis true? How should we interpret an experiment where we…

A: In general, we perform to two types of hypothesis test. First, we have to find whether the test is…

Q: Why do we test the null hypothesis and not the alternate affirmative hypothesis

A: We have to answer question related to the hypothesis testing.

Q: reject the null hypothesis when the alternative hypothesis is true, we have made a correct…

A: In hypothesis testing, a type I error occurs when the null hypothesis (Ho) is rejected when it is…

Q: In performing a hypothesis test, one should decide whether to reject or not reject the null…

A: We have to find statement is true or false.

Q: A researchers claims 45% of couples have children. They conduct a hypothesis test and reject the…

A: Type I Error : Reject H0 when H0 is true.

Q: If a hypothesis test rejects the null hypothesis test at a = 0.05 will it also always reject the…

A: If the p-value of a hypothesis test is less than or equal to the level of significance, then reject…

Q: Rejecting a true null hypothesis, which type of error it is?

A: While performing a hypothesis test,one can commit two types of errors.He might reject the null…

Q: I don't know where to begin to build a hypothesis Test.

A: Hypothesis: A statistical hypothesis is a claim or assumption about population parameter, This claim…

Q: What does it mean for a hypothesis test to be "significant"? How is this different from our everyday…

A: A test result is statistically significant when the sample statistic is unusual enough relative to…

Q: If you are not able to prove the alternative hypothesis, this means the null hypothesis is correct.…

A: Null Hypothesis: A hypothesis which is tested for plausible rejection is called the Null Hypothesis…

Q: What are the real-life situations where hypothesis testing can be done? Identify the parameter to be…

A:

Q: What are the two decisions that you can make from performing a hypothesis test? What are the two…

A: In a hypothesis testing, the decisions are made as follows ,

Q: A type II error can only be committed if the null hypothesis is false. Otherwise, if the null…

A: Given : A type II error can only be committed if the null hypothesis is false.

Q: If we reject the null hypothesis, does this mean that we have proved it to be false beyond all…

A: There is always a type 1 error when null hypothesis is rejected.

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.