If you use a 0.10 level of significance in a two-tail hypothesis test, what is your decision rule for rejecting a null hypothesis that the population mean equals 500 if you use the Z test? use the hypothesis testing steps

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: A researcher is comparing the annual income of students who graduated from Belair College with…

A: If the population failed to follow any distribution, then non parametric test is used. The non…

Q: If the p-value found in an experiment is 0.85. We reject the null hypothesis. True False

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Q: Suppose that according to your company, the average salary for middle managers was 105,000. You…

A: (a)   Determine the type of test must be run.   The type of test that must be run is hypothesis…

Q: State the statistical hypotheses (null and alternative) for a two-tailed test against a known…

A: In this context, the known population mean is 90.

Q: Select a significance level α and reject the null-hypothesis if the p-value is less than α. Explain,…

A: Correlation: The correlation coefficient explains the relationship between two quantitative…

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: 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: Which provides stronger evidence against the null hypothesis, a P-value of 0.06 or a P-value of…

A: Decision criterion:If the p-value of the test is less than or equal to the level of significance,…

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: Use a 0.05 significance level to test the claim that the two samples are from populations with the…

A: n1 =35n2 = 40 x1 = 19.4x2 = 15.1s1 = 1.4s2 = 0.8

Q: Using the p-value method, we reject the null hypothesis if the p-value is ___________than or equal…

A: NOTE When p-value≤α=level of significance, then we reject the null hypothesis. When…

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: For a lower tail hypothesis test with a sample size of 13 and a .10 level of significance, the…

A: From the provided information, Sample size (n) = 13 Level of significance (α) = 0.10 The test is…

Q: researcher is using a one-way ANOVA to see whether a significant difference can be found between 3…

A: Given that  A researcher is using a one-way ANOVA  Claim : whether a significant difference can be…

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: A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the…

A: State the Null and alternate hypotheses: The two categories of interest are the “Amount of smoking”…

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

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Q: Samples of Republicans, Democrats, and independents, have been tested for their level of support for…

A: We have given that samples of Republicans, Democrats, and Independents have been tested for their…

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: 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: If the F-statistic is close to one, what would be the decision of a hypothesis test?

A: The F-statistic is the test statistic for F-tests. In general, an F-statistic is a ratio of two…

Q: Determine the P-value and decide whether at the 5% significance level, the data provide sufficient…

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

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Q: criminologist was interested in whether there was any disparity in sentencing based on the race of…

A: Black White Mean 6 4.8 Variance 3.25 6.1778 Observations 9 10

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: A medical research team conducted a study to test the effect of a migraine drug. Of the 400 subjects…

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

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Q: Consider a drug testing company that provides a test for marijuana usage. Among   307 tested​…

A: We have given that  Sample size=n=307 Favorable=X=27 p0=10%=0.10 Significance level=alpha=0.10

Q: Select the most appropriate response. If a null hypothesis is rejected at a 1% significance level,…

A: According to the given information

Q: If we were going to perform a hypothesis test for the population mean with Ho : µ> 1200 vs H : u<…

A: Given information: μ=1200, σ=400, n=50α=0.05 H0 : μ≥1200HA : μ&lt;1200 The given hypothesis test is…

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: Which provides stronger evidence against the null hypothesis, a P-value of 0.02 or a P-value of…

A: Decision criterion:If the p-value of the test is less than or equal to the level of significance,…

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

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

Q: Choosing the alpha level for a hypothesis test allows researchers to control the probability of…

A: I am sorry for your Inconvenience. Please go through the following explanation. In hypothesis tests,…

Q: , what is the test statistic and p-value?

A:

Q: In follow up to my last test, I believe there are more females that use iPhones then males. In a…

A: Total sampled people are 20  Here, n1=10, n2=10  and p^1=0.5, p^2=0.7   The null hypothesis is…

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

A:

Q: If the null hypothesis (3:5:2) is true, determine the expected number of students that score A, B…

A: a) If the Null Hypothesis is true which means the ratio of grades is valid Then, Expected Values…

Q: A Gallup poll to survey the top concerns of Americans was conducted. Suppose that 566 women and 465…

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Q: Use the two-proportions z-test to perform the required hypothesis test. Assume that independent…

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Q: Past studies have indicated that the percentage of smokers was estimated to be about 34%. Given the…

A: From the provided information, Population proportion (p) = 0.34 Sample size (n) = 1807 Out of which…

Q: Solve the problem. 13) A researcher wants to know whether athletic women, on average, are more…

A: 13) Let μ1 denotes the population mean exercised athletic women, and μ2 denotes the population mean…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 33%. Given the…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…