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

Q: A small P-value for a test of significance is: evidence against the null hypothesis. evidence for…

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Q: Suppose that you have obtained a sample with the intent of performing a particular…

A: Solution: We have to determine:If we have obtained a sample with the intent of performing a…

Q: A sample of 100 yielded a test statistic of 2.1. For a level of significance of 0.05, the null…

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Q: If the p-value = 0.04 at a 3% significance level, what is the conclusion? O Not enough information…

A: According to the given information in this question We need to identify the correct option

Q: TRUE/FALSE: For a hypothesis test, using a fixed sample, increase the value of significance level a,…

A: Dear students as per guidelines we answer the first question only when multiple different question…

Q: Why does a large value of the F statistics provide evidence against the null hypothesis?

A: We use F-statistic (F ratio) when we are comparing the group means like ANOVA test for for more than…

Q: What is the null distribution of the test statistic? How do we know if it is normal or not, and how…

A: Points on the sampling distribution of the sample mean: If the true population distribution of a…

Q: What is the distinction between independent and dependent samples in hypothesis testing involving…

A: The objective is to determine the distinction between independent and dependent samples in…

Q: If the null hypothesis is true, this means that there is no real difference between sample means and…

A: If the null hypothesis is true, this means that there is no real difference between sample means and…

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: when we will be reject the NULL HYPOTHESIS on the basis of

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: Is there enough evidence, at a a = 0.01 level of significance, to show a difference between the…

A: The provided sample means are shown below: Xˉ1=578\bar X_1 = 578 Xˉ2=570\bar X_2 = 570 Also, the…

Q: Russell says he is willing to accept a 5% chance of making a Type I error in this study. What is the…

A: Russell says he is willing to accept a 5% chance of making a Type I error in this study. so…

Q: Briefly explain when a one-way ANOVA procedure is used to make a test of hypothesis 8. What is the…

A: (a) The one-way analysis of variance (ANOVA) is used to determine whether there are any…

Q: When is it appropriate to use a one-sample Z test and how is this value similar to a simple z or…

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Q: 1. How to know which statistical test to use for hypothesis testing? Explain.

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What does rejecting the null hypothesis and statistically significant both signify?

A: The key assumption of a hypotheses test is that the null hypothesis is true. The aim of the…

Q: Consider the following null and alternative hypotheses: Ho:u = 60 versus H1: µ > 60 Suppose you…

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Q: If the null hypothesis is rejected for a One-Way ANOVA, then what test should you conduct?

A: If the null hypothesis is rejected for a One-Way ANOVA, then it means that the means of all groups…

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

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Q: You are performing a two-tailed t-test with a sample size of 19 If a = 0.02, and your test statistic…

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Q: When the null hypothesis is true for an ANOVA, what is the expected value for the F-ratio?

A: When the null hypothesis is true for an ANOVA, expected value for the F-ratio is 1 since the top and…

Q: State two reasons why including the P-value is prudent when you are reporting the results of a…

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Q: A p-value indicates the probability of a particular sample statistic occurring (or a more extreme…

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

Q: how you recognize when an inferential statistics problem involves either a confidence interval…

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Q: If the value of the observed test statistic falls in the rejection region, the alternative…

A: Identify the correct option for if the value of the observed test statistic falls in the rejection…

Q: What does The statistical hypotheses consist of?

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Q: Why it is important to test the stationarity status of the data series of each variable before…

A: Time series is one the concept of statistics which plays an important role in economics, statistics,…

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

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Q: True or false: To conduct a two-proportions z-test, we need at least 5 successes and 5 failures in…

A: The following characteristics should be present when performing a hypothesis test that compares two…

Q: True or false: In order to use the unpooled t-test, we need to assume that the two population…

A: In order to use the unpooled t-test, we need to assume that the two population variances are…

Q: How can someone recognize when an inferential statistics problem involves either a confidence…

A: Confidence interval is used to find the true value of the estimate of population parameter by using…

Q: How do you conduct a test for a hypothesis that two independent population means with known…

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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: ☐ True ☐ False In a one-way ANOVA with 8 levels, there is only one null hypothesis.

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

Q: True or false: in ANOVA, if The variability Within samples is Large relative to the variability…

A: In one-way ANOVA, the F-statistic is the ratio: F = variation between sample means / variation…

Q: When should you use a z-test versus a single sample t-test?

A: We know that- z-test- It is a statistical test used to determine the difference between the two…

Q: If an ANOVA test is conducted and the null hypothesis is rejected, what does this indicate?

A: ANNOVA is a statistical technique that assesses potential differences in a scale-level dependent…

Q: What is the normal hypothesis and alternative hypothesis?

A: In probability and statistics, the null hypothesis is a comprehensive statement or default status…

Q: What are two reasons null effects can happen? How can you increase the power of a statistical test…

A: Reasons of null effect

Q: 1) If your p-value is less than a significance level , then your decision is to fail to reject the…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the relation between the significance level of a hypothesis test and the probability of…

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

Q: When testing for the difference between the means of two dependent samples, the sample sizes are…

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

Q: Test the claim that the proportion of men who own cats is smaller than 40% at the .005 significance…

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Q: Is the attached problem a two sample test for a two sample normal means hypothesis test? Not sure…

A: The given problem is an example of two independent sample t-test. a) H0: Population variances of the…

Q: PO,n Suppose that we want to test Ho : B1 = 0 against H1 : ß1 # 0 at 1% significance level. Assuming…

A: Solution:

Q: A hypothesis test for the mean of a population was performed and a p-value was obtained p = 0.044.…

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Q: Assuming that the null hypothesis is true, the ______________ is the probability of observing a…

A: Assuming that the null hypothesis is true, the p-value is the probability of observing a value of…

Q: A small p-value means that the probability of obtaining a sample mean more extreme than the one…

A: Given : Statement : A small p-value means that the probability of obtaining a sample mean more…

Q: a.    If a null hypothesis is rejected with a significance level of 0.05, is it also rejected with a…

A: To be reject null hypothesis,  p value must be smaller than alpha.