Describe the difference in how observations are ranked in the Friedman test and in the Kruskal–Wallis test.

Q: There is an advantage in stating the hypothesis both in the null and in the alternate; it adds…

A:

Q: Please Describe in a short sentense  the circumstances under which you should use ANOVA instead of t…

A: Here we want to describe ANOVA instead of t test.

Q: What is a situation where you would test for independence?

A: When we are to check whether the row and column variables are independent of each other in that…

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: Identify the type of hypothesis test below. H0:X≥17.9, Ha:X<17.9

A: Given information- We have given the hypothesis Null Hypothesis: Ho: X ≥ 17.9 Alternative…

Q: If the equality term in the null hypothesis involves ≤ or ≥, then which test would be appropriate?

A:

Q: The mean age of professors at a university is greater than 58.3 years. If a hypothesis test is…

A: The claim of the test is that the mean of professors at a university is greater than 58.3 years.…

Q: A Type II error is known as the producer's risk because, when it occurs in quality control settings,…

A: A Type II error is known as the producer's risk when it occurs in quality control settings, because…

Q: The null hypothesis is a claim about a:

A: It is needed to explain about the null hypothesis.

Q: Is Machine A performing within standards? O Yes O No O Evidence is lacking

A: The test hypotheses are given below: Denote µ as the true mean The Null hypothesis H0: µ =350 The…

Q: The mean number of rushing yards for one NFL team was less than 109 yards per game. If a hypothesis…

A: The test hypothesis will be, H0: μ ≥ 109 H1: μ &lt; 109. This is a one –tailed test.

Q: If a researcher is wrong in his decision and he rejects the null when the null is true, what type of…

A: Type I error: The type I error is the rejection of the null hypothesis when it is actually true.…

Q: What’s the logic of the Pearson’s rformula?

A: Correlation coefficient, r: The Karl Pearson’s product-moment correlation coefficient or simply, the…

Q: If you reject the null hypothesis, you may be making. O a Type Il error O a Type lerror O a Type Il…

A: Type I Error : Type I error occurs when we reject true null hypothesis. Type II Error : Type II…

Q: The principal of a middle school claims that test scores of the seventh-graders at his school vary…

A: Given H = 14.7 Hypothesis test done.

Q: When a claim or assertion is involved in hypothesis testing, the nu1l hypothesis is always the same…

A: If the original claim includes equality (&lt;=, =, &gt;=), it is the null hypothesis and If the…

Q: A baseball team claims that the mean length of its games is more than 2.6 hours. State H0 and Ha in…

A:

Q: f you are in this research team, what would you advise with regards to the use of the treatments?…

A: Given:     Additive     A1 A2 A3   2.58 1.26 1.61   2.72 1.96 1.21 cortisol 2.25 1.88…

Q: The Hardcore Construction Company has two offices, one in Atlanta and one in New Orleans. Fifteen…

A: We have give the statement: A company has two offices, one is Atlanta and one is New Orleans.…

Q: Which of the following is NOT true regarding Type I and Type II errors in this setting?

A: Here use given null and alternate hypothesis

Q: ASsume that a hypothesis test of the given claim will be conducted. Identify the tyne i or type II…

A: The type I error is defined as rejecting the null hypothesis when actually it is true.

Q: Help find the test statistic, p-value, if we reject the null, and if there is suffienent evidence.…

A:

Q: You would like to see if college students get more than 90 minutes of physical activity a day (on…

A:

Q: what is the zobserved value for the hypothesis test?

A: It was stated that I believe that caffeine can improve the capacity of short-term memory (STM). It…

Q: If a researcher wants to test the claim that the proportion of job seekers turned downed for a job…

A: We know that one-way ANOVA is used when we have to find a significant difference between the means…

Q: The president of a university claims that the mean attendance at football games is less than 50,000…

A: Here we need to choose from the correct option. The claim is that the mean attendence at football…

Q: s there a difference in the car brand's countries for Midwesterners and people from the west coast?…

A: Given Information: Of the 173 randomly selected Midwesterners surveyed 65 had an American car, 83…

Q: et the null hypothesis.

A: It is given that, When testing a hypothesis at a level of significance 0.10.   From t-statistic, the…

Q: a particular strain of inbred mice has a disability. any one mouse born with specific parent is is…

A: Solution: Let X be the number of offspring observed and n be the number of offspring raised from…

Q: The National Association of Realtors reported that 26% of home buyers in the state of Florida are…

A: Claim: 26% of home buyers in the state of florida areforeigners in 2012 .

Q: Are the conditions for inference met?

A:

Q: State whether each hypothesis is null or alternative. 1. The propcrtion of students who will use…

A:

Q: If the MLR.4 assumption (Zero Conditional Mean) is violated, then it must be that there is nonrandom…

A: Given a statement about the MLR 4 assumption (Zero Conditional Mean).

Q: If a researcher does not uncover sufficient evidence for a treatment effect in a hypothesis test,…

A: When , p&lt;0.05 we reject the null hypothesis and conclude that there is not sufficient evidence…

Q: Suppose that an allergist wishes to test the hypothesis that at least 30% of the public is allergic…

A: Here the claim is to test whether at least 30% of the public is allergic to some cheese products or…

Q: What is the standardized test statistic, z, to test the alternative hypothesis that p > 0.20 given…

A: Consider that p is the true population proportion.

Q: Is there a difference in the car brand's countries for Midwesterners and people from the west coast?…

A: 1. The data can be represented in contingency table is, Observed frequency American Asia…

Q: 9. Given that u = 34.18, µo 37 and we have a left tail test is it possible to have a Type error?…

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Q: Suppose a business person wishes to open a store in a local shopping centre only if there is strong…

A:

Q: is there enough evidence to reject the claim

A: It is given that Test statistic Z = 1.57 Critical value = 1.96 P-value = 0.1164 Level of…

Q: It is a known fact that 50% of all Americans are male. A researcher wants to see if the percent of…

A: 1) Answer is true, since comparing two proportions.

Q: Which of the following statements regarding probabil ity is always correct?

A: Probability explains how likely an event, under consideration, is to occur. The value of probability…

Q: will this be sufficient or is not sufficient evidence.

A: Given : For a data set of brain volumes (cm) and IQ scores of twelve males, the linear correlation…

Q: What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the…

A: Test is that whether the mean hourly wage has changed this year. The type II error is accepting the…

Q: A local high school makes a change that should improve student satisfaction with the parking…

A: Let p be the proportion of students who were satisfied with the parking situation.  Here the null…

Q: The mean age of professors at a university is 57.9 years. If a hypothesis test is performed, how…

A: Testing of Hypothesis: Testing of hypothesis is a rule which, when the sample values have been…

Q: Calculate the degrees of freedom associated with a small-sample test of hypothesis for (41 – #2),…

A: Provided data is, small sample test of hypothesis is performed for (µ1- µ2) it assumed that…

Q: The Kolmogorov-Smirnov tests for what assumption?

A: