What does it mean that the null and alternative hypotheses are mutually exclusive and exhaustive and why is that important for hypothesis testing? Why do we evaluate null hypotheses instead of the scientific 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: Why can we never accept the null hypothesis

A: Accepting null hypothesis means we are sure that null hypothesis is true. But we cannot we sure. We…

Q: What are the two kids of errors we can make in hypothesis testing?

A: The two kinds of errors are 1)Type 1  2)Type 2  Type 1 Error: It is referred as False Positives. It…

Q: Explain "null hypothesis"? its properties?

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

Q: Most customers like iced coffee more than hot coffee.      Alternative hypothesis      Null…

A: For the given claim we want to know the null and alternative hypothesis.

Q: Are freshmen psychology majors less likely to change their major before they graduate compared to…

A: From the given information we conduct Z test for two proportion.

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: Be able to determine the null hypothesis from a description of an experiment?

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

Q: write the null and alternate hypothesis statement. how will you define type-1 error and type-2 error…

A: Answer:  Given that, you want to propose your long time best friend. but you are scared to do so…

Q: Differentiate null from alternative hypothesis NULL ALTERNATIVE 1. 2. 3. 1. 2. 3.

A: A hypothesis is a idea that can be tested. If null hypothesis is accepted, then alternate hypothesis…

Q: Describe about retaining null hypothesis implies.

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

Q: Can you give me an example on how to write the null and alternative hypotheses and determine if each…

A: Basically, null hypothesis is the statement of a population parameter such as mean, proportion,…

Q: What are the possible outcomes of hypothesis test?

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

Q: True or False: A Type I Error is made by failing to reject the null hypothesis when the null…

A: Given statement is,A Type I Error is made by failing to reject the null hypothesis when the null…

Q: What is the importance of the null and alternitive hypotheses?

A: Null and alternative hypotheses

Q: What are the basic steps involved in any nonparametric test of hypothesis?

A:

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: Explain what is Null and Alternative Hypotheses, and how are they link to each other?

A: Null Hypothesis: this means there is no statistical significance or difference between the two…

Q: what does failing to rejectthe null hypothesis mean?

A: First, it is possible that the effect truly doesn’t exist in the population, which is why the…

Q: pe II error represent the possibility that your rejection of a null hypothesis was incorrec

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

Q: Describe type I and type II errors for this hypothesis test?

A: A type 1 error is also known as a false positive and occurs when a researcher reject the null…

Q: (2) If the Type II error of a hypothesis test is 0.10, what is the power of the test? Show steps.

A:

Q: Explain null hypothesis vs alternative hypothesis.

A: In theory of statistics, hypothesis is a statement regarding the parameter of interest.

Q: 1. why do two samples need to be independent when doing a hypothesis test ? 2.  Could you do a…

A: Part 1: Independent samples are samples drawn from same population or different population that are…

Q: What is the Importance of Null Hypothesis?

A: Introduction: Hypothesis testing is a statistical process, in which, a researcher has a “hypothesis”…

Q: In choosing between two hypotheses, we assume the alternate hypothesis is true…

A: Answer: Given that, In choosing between two hypotheses,

Q: "Reject the Null Hypothesis" means: Your alternative hypothesis is proven right You found sufficient…

A: Hypothesis: Hypothesis is a statement about the statistical distribution or parameter of statistical…

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

A:

Q: If null hypothesis really is false because of large effect. Explain about the statement.

A: The statement is " if the null hypothesis is really false because of large effect". The statement…

Q: State why a non-significant outcome does not mean the null hypothesis is probably true?

A:

Q: If in general a reasearch question needs to be answered by using the null and alternative hypotheses…

A: In testing of hypothesis, the first step is to set the Null and the research hypothesis. The null…

Q: Describe about the New Null Hypothesis for One-Tailed Tests.

A:

Q: Will the critical value approach and the p-value approach return the same conclusion for a…

A: Critical value is the value that divides the rejection region from the non-rejection region. This…

Q: Can you guys help me on this? Thank you!

A: a.H0​:p1​−p2​≤0HA​:p1​−p2​>0 b. 0.75 c. 0.72 d.test statistic: z = 1.25p-value: p =…

Q: What does the decision to retain null hypothesis implies?

A:

Q: Describe the significance of null hypothesis.

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

Q: Why is it recommended to formulate a hypothesis so that it becomes the alternative (but not null)…

A: The null hypothesis is the hypothesis which assume there is no statistical significance between…