How do you know when a hypothesis test is left-tailed, right-tailed or two-tailed? How is this related to the alternative hypothesis?

Q: What are the two types of hypotheses used in a hypothesis test? How are they related? What are the…

A: we know that  they are two types hypothesis   null and alternative hypothesis .

Q: What is/are the difference/s between a one-sided hypothesis and a two-sided hypothesis?

A: Differentiate the two sided and one sided hypothesis.

Q: What is your variable in this study? State your null hypothesis in words, for this study, and…

A: Given information: No. of observations=15  No. of groups= 03  Groups=Varieties

Q: What is the​ p-value if, in a​ two-tail hypothesis​ test, ZSTAT=+1.16​?       ​p-value=

A:

Q: Explain "null hypothesis"? its properties?

A: Null hypothesis: The null hypothesis is a statement about a population parameter, such as the…

Q: A result is significant at the 0.01 level. Explain why it must also be significant at the 0.05…

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Q: What does it mean to find significant results from a hypothesis test?

A: Two types of hypothesis :  1  :  null hypothesis 2  :  alternative hypothesis

Q: A (hypothetical) experiment is conducted on the effect of alcohol on perceptual motor ability. Ten…

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Q: In a two-tailed hypothesis test, the test statistic is determined to be z = -2.5. The p-value for…

A: We have to find p value.

Q: e p value used to reach a conclusion in a hypothesis testing pro

A: The p-value is a conditional probability of getting a test statistic as extreme or more extreme than…

Q: How do I find the p value for a hypothesis test

A: The concepts of testing of hypothesis, p-value, and t-test are used here.

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: Explain how a court trial is like hypothesis testing.  Include the steps of a hypothesis test and…

A: Hypothesis testing: The claim is typically referred to as a hypothesis, and the process of deciding…

Q: True or False. In order to know whether a hypothesis test is one-tailed or two-tailed, the null…

A: Here, when we had one tailed or two tailed hypothesis then then we consider null hypothesis based on…

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 is the complete hypothesis test for: Men’s personal care products cost more than ladies…

A: The null hypothesis is defined as the test conducted under homogeneous conditions for its possible…

Q: The one-tailed test only uses the null hypothesis whereas a two-tailed test uses both the null…

A: One tailed test :          The one tailed test  in which critical region is one sided it is either…

Q: what kind of hypothesis test is this

A: We have given that the information of two variables, the independent variable X i.e, dynamic risk…

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

A: From the given information, Most researchers would like the hypothesis test to reject the null…

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

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Q: According to the wall street journal, in 2011 the average (or mean) cable bill was $ 128 per month.…

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Q: We are testing whether students learning online perform worse than students learning in person. If…

A: Claim : Students learning online perform worse than students learning in person. The hypotheses…

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: Discuss the concepts of hypothesis testing, including what you are evaluating, when it should be…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: What it means to find significant results from a hypothesis test?

A: Introduction :-  To explain what it means to find significant results from a hypothesis test.

Q: Need to label the inductive hypothesis. what would be the inductive hypothesis

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Q: Explain the difference, in your own words, between a null hypothesis and the alternative hypothesis.…

A: Hypothesis:Hypothesis is an assumption about the parameter of the population which will be made on…

Q: The manager at Costello Drug Store assumes the company’s employees are honest. However, there have…

A:

Q: how do you do a two-tailed test with a= .05. with the four steps for hypothesis testing and labeling…

A:

Q: If the null hypothesis is not rejected at the 5% level of significance, then A it will never be…

A: Hypothesis is  always rejected for p value less than alspha.

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: Explain briefly when to use the Z-test, t-test and F-test in the hypotheses testing.

A: Solution: -  1) Z-test: - Following conditions are met before apply the Z-test : 1) The samples must…

Q: When conducting a hypothesis test, we hope to avoid commiting a type 1 error, which is: 1. Not as…

A: We know that when we are going to test hypothesis their can be two types of errors happens. 1. type…

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: How does hypothesis testing help support the fields that employ the scientific method?

A: The process that incorporates science is known as Scientific Method It explains the natural…

Q: What are the equations for a two-tailed hypothesis test?

A: Disclaimer : Since you have asked multiple question, we will solve the first question for you. If…

Q: Define the Null Hypothesis and give an example

A: As per our guidelines, we are supposed to answer only 1 question. Kindly repost the other question…

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: How does hypothesis testing help support the fields that employ the scientific method? Besides…

A: Hypothesis:Hypothesis is an assumption about the parameter of the population which will be made on…

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

A: In this case we need identify the two decisions for performing a hypothesis test.

Q: How do I find the p-value for a two-tailed hypothesis test?

A:

Q: Define the null hypothesis in mathematical terms and in words Define the alternative hypothesis in…

A: Null hypothesis H0: β1= β2 = 0 H0: All regression coefficient would be zero. Alternative hypothesis…

Q: What are the two types of hypotheses used in a hypothesis test? How are they related? What are the…

A: Given : Here we have to determine the two types of hypotheses used in a hypothesis test.

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: 2. You want to propose your long time best friend. But you are scared to do so fearing rejection.…

A: The null and alternative hypothesis are defined as :  Null hypothesis is a statement regarding the…