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

Q: A team of researchers conducted 100 independent hypothesis tests using a significance level of a =…

A: Given that  Total number of independent hypothesis tests done = 100 Significance level (α) = 0.05 =…

Q: A researcher wants to test whether the average cholesterol level among those who regularly eat…

A: Introduction: Denote μ as the true average cholesterol level of those who eat frozen hot dogs…

Q: What would your decision be on this hypothesis test if we use a level of significance for the test…

A: Here given cereal is claimed to have an average of 3 grams of dietary fiber per serving  Here test…

Q: If we have a sample of size 100 with sample mean breaking strength of 1050 pounds from a population…

A: Sample size (n)=100 Mean breaking strength (x¯) = 1050 pounds Standard deviation (σ)  = 200 pounds…

Q: Use the given information to find the P-value. Also, use a 0.05 significance level and state the…

A: Given: Level of significance = 0.05 Right tailed test. Test statistic Z = 1.43

Q: State the null hypothesis for the one-way between-subjects ANOVA.

A: Note: Hi there! Thank you for posting the question. As your question have posted multiple questions,…

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: What is the relationship between Bernoulli trials and the binomial distribution?

A: The probability distribution for the number of success in a sequence of n Bernoulli trials is called…

Q: Dr. Rivera believes that mood disorder is less prevalent among older adults than it is among young…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: What is the criterion for rejecting the null hypothesis? How the p value is determined in ANOVA?…

A: Null Hypothesis: H0: There is no significant difference between means of three populations.…

Q: Does the sample evidence suggest that level of education and health are independent at the  α = 0.05…

A: Given information- Significance level, α = 0.05 We have to test the claim that the level of…

Q: What are the assumptions for using a two-sample independent t-test?

A: Given : Two-sample independent t-test :    This test is also called as two-sample t-test     This…

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: Explain why the P-value of a hypothesis test is also referred to as the observed significance level.

A: In this case, one is needed to explain the reason for referring the P-value as the observed…

Q: if a two-tailed test has a 5% significance level and a p-value of 0.01 do we reject Ho

A: It is given that the There is a two-tailed test problem with a 5% significance level. P-value is…

Q: What are the criteria for an experiment to be a binomial experiment?

A: Let us consider the below example: A fair coin is flipped 10 times; X represents the number of…

Q: Explain why the null hypothesis should not be accepted when the effect is not significant?

A:

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: Explain the effect of effect size on power in relation with null hypothesis?

A: Power of a test: The probability that not occurring the type II error is called power of the test.…

Q: What is the critical value for a one-tailed hypothesis test in which a null hypothesis is tested at…

A:

Q: What is the observed significance level for this test?

A: here given , n= 50  sample mean  =  19.4  sample standard deviation  =  3.1

Q: What significant element distinguishes a quasi-experiment from a true experiment?

A: Given problem Given that   What significant element distinguishes a quasi-experiment from a true…

Q: Test the claim that the proportion of men who own dogs is smaller than the proportion of women who…

A: From the provided information, The claim is that the proportion of men who own dogs is smaller than…

Q: 10) The mean age of bus drivers in Chicago is 48.7 years. If a hypothesis test is performed, how…

A: Denote μ as the population mean age of bus drivers.

Q: What are some assumptions researchers may have about a related-samples t-test?

A: Correlated samples t-test or matched pairs t-test or repeated measures t-test: The paired t-test or…

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: in a study of 801 randomly selected medical malpractice​ lawsuits, it was found that 495 of them…

A: When the value of sample size is large (30 or more than 30) we use the z test as our test statistic.…

Q: In a study of 811 randomly selected medical malpractice​ lawsuits, it was found that 473 of them…

A:

Q: The sample size is 41, P-value is 0.041, and the significance level is 0.05. Consequently, we reject…

A: Given information Sample size n = 41 p-value = 0.041 Significance level ɑ = 0.05

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: The value for the test statistic for a left-tailed one mean z-test is z= -1.19. Determine the…

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

Q: It states that the observed data is not significantly different from the expected data. O Null…

A: Given that  Statement : The observed data is not significantly different from the expected data.…

Q: What are factors to consider in choosing in a P-value for a hypothesis test?

A: Answer:-  There are 3 factors need to consider in choosing a P value.

Q: What is the null hypothesis of a one-tailed repeated-measures research study if a treatment is…

A: Answer:-  Here, null hypothesis is there is no increase in scores after the treatment.  Null…

Q: When doing an ANOVA, you observe large differences in means between groups. Within the ANOVA…

A: ANOVA: It is a statistical method for testing hypotheses regarding the mean difference among two or…

Q: Show the difference between two approaches to significance testing?

A: The two approaches to significance testing are p-value approach and critical value approach.

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: is take for one-way between-subjects analysis of variance? Why can’t it be summarized in a single…

A: The amount of variation among the sample means or the variation attributable to the difference among…

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

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

Q: What is the relationship between the t-test and the sample size? (

A: Here identifying the relationship between t test and sample size

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 type of hypothesis test should be performed?| What is the test statistic? What is the number of…

A:

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 six differences between the null hypothesis and the research hypothesis?

A: In a hypothesis to test any claim made null hypothesis and the research hypothesis are formed and…

Q: Based on the data and results of test for normality in the table, complete the parts of hypothesis…

A:

Q: A large p-value indicates that the data is consistent with the alternative hypothesis.   True or…

A: The p-value is the likelihood of obtaining the value of sample statistic which would be as extreme…

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: 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: How many null hypotheses are associated with a two-way ANOVA?

A: Solution :- There are Three null Hypothesis are associated with a two way anova   Followings are the…