a) Answer true or false and explain your answer: If it is important not to reject a true null hypothesis, the hypothesis test should be performed at a small significance level.

Q: What is the null hypothesis and alternative hypothesis?

A: Given Information: Data indicates the scores of 10 subjects in the first test and scores of the…

Q: True or False  In a hypothesis testing, if the p-value is less than the significance level a, we do…

A: Significance level: It is the proability of rejecting the null hypothesis when it is true. p-value:…

Q: 1. How to know which statistical test to use for hypothesis testing? Explain 2. Identify the 6 steps…

A: There are several statistical tests, that are used to determine if a predictor variable has a…

Q: Differentiate the Type 1 and Type 2 Error in doing Hypothesis Testing.

A: We want to tell you type 1 error and type 2 error

Q: the difference in the null hypothesis and the alternative hypothesis?

A: In testing of hypothesis, sometimes exact sampling distribution of the test statistic can be…

Q: Which approach measures the strength of the evidence against the null hypothesis, the p-value…

A: We have to find  Measures of the strength of the evidence against the number hypothesis using p…

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

A: 1.   It is needed to elaborate the relation of P-value with level of significance.

Q: The test statistic is The p-value is Should the null hypothesis be rejected?

A: here from given information  for gamer in age- group 16-25 x1¯ = 42.5 σ1 = 9.5 n1 = 351    for gamer…

Q: What does null hypothesis ascertain?

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

Q: How to Minimizing Incorrect Decisions in hypothesis testing?

A: There are two cases in which an incorrect decision making in hypothesis testing occurs given as…

Q: What is the formula for a 2-sample hypothesis test?

A:

Q: what is the correct null hypothesis?

A: The null hypothesis states that the model is not useful because all the coefficients are zero. That…

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

A:

Q: When is it valid to use a one-tailed test? What is the advantage of a one-tailed test? Give an…

A: When the claim of the test is to test whether one quantity is more or less than the other quantity,…

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: A hypothesis test is conducted with a level of significance of  10%  and the resulting  p  value is…

A:

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: What is the difference between failing to reject the null hypothesis and having evidence to support…

A: Given that  What is the difference between failing to reject the null hypothesis and having evidence…

Q: The term error is used in two different ways in hypothesis testing: a Type I error (or Type II) and…

A: A) Standard error can be decreased by increasing the sample size. Changes in sample size have no…

Q: In ANOVA, the null hypothesis is

A: We want to tell you null hypothesis in anova

Q: What is a p-value and how is it used to make a decision about the null hypothesis? How is the…

A: 1. The p-value or the calculated probability can be defined as the probability of finding the…

Q: Will the null hypothesis be rejected at a 5% level of significance?

A: Here sample proportion p⏜ = 0.63 Sample size n = 800 Now testing given hypothesis

Q: the non-directional null hypothesis? What is the alternative hypothesis?

A: Hypothesis in statistics are the statements which need to be tested on the basis of the observed…

Q: If the significance level is α = 2% and p-value = 0.007, what is the conclusion? fail to reject the…

A:

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: true or false: If the p value of a statistical test is greater than 90% then this would support…

A: p-value: In general, the p-value is also called as probability value. The p-value is the probability…

Q: What is the difference between the null hypothesis and the alternative hypothesis when doing a…

A: Basics:

Q: What is the test statistic? z= What is the P-value? What is the conclusion about the null…

A:

Q: What are examples of a null and research hypothesis?

A: In a hypothesis test, Null and Alternate hypothesis are mutually exclusive ( both can not be true at…

Q: Which element of a test of a hypothesis is used to decide whether to reject the null hypothesis in…

A: Know that  Level of significance =alpha  Null and alternative hypothesis is denoted by H0 and H1.

Q: what causes the rejection of null hypothesis? what is the significance level?

A: The p - value less than 0.05(5%)

Q: Explain the significance of Hypothesis Testing?

A:

Q: A. What are the null and alternative hypotheses for the hypothesis test B. Identify the test…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks   The following…

Q: What is a null hypothesis?

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

Q: How do you determine whether or not the paired t test is appropriate for a two-sample hypothesis?

A:

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: A hypothesis test result is considered to be statistically significant only when?

A: We want to tell you when hypothesis is significant

Q: 29. What is your conclusion? Do you reject the null hypothesis or fail to reject the null…

A: 29) The D score is obtained by finding the difference between pain before and pain after. That is…

Q: What is the conclusion about the null hypothesis? O A. Fail to reject the null hypothesis because…

A:

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 do I explain the following? 1. Explain p-value In hypothesis testing , why can’t the null…

A: 1. P-value: The probability of getting the value of the statistic that is as extreme as the…

Q: How do you determine whether or not the paired t test is appropriate for a two-sample hypothesis

A: A paired t test is applied when the two samples have an equal size. A paired t test is used when we…

Q: i. What are the appropriate null and alternative hypothesis? ii. Perform a hypothesis test at 5%…

A: u = 180 xbar = 200 s = 59.5 n = 51

Q: If a treatment has a very small effect, what is a likely outcome for a hypothesis test evaluating…

A: Treatment has a very small effect.

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

A: Null hypothesis: The hypothesis which has usually a no difference or a neutral attitude is called…

Q: Explain why accepting the null hypothesis is not a possible outcome.

A: Hypothesis:- A statistical hypothesis is some assumption or claim about the population.

Q: What is the value of the sample test statistic for a one-sided hypothesis test conducted using a 1%…

A: Given n1=50 n2=40 x¯1=4.35x¯2=5.84σ1=1.20σ2=1.36α=0.01

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 Is a Hypothesis?   What Is Hypothesis Testing?   What is the Five-Step Procedure for…

A: Solution-: We want to get, (a) What is the hypothesis? (b) What is hypothesis testing? (c) What is…