If the null hypothesis is rejected in hypothesis testing, O the alternative hypothesis is true. O the sample size has been too small. O the data must have been accumulated incorrectly. O no conclusions can be drawn from the test.

Q: Which of the following is NOT a condition necessary for a hypothesis test about a single population…

A: Given that : Which of the following is NOT a condition necessary for a hypothesis test about a…

Q: Consider the first sample to be the sample of people over the age of 55 and the second sample to be…

A: Given : p^1=sample proportion who dream in black and white over the age of 55=60303p^2=sample…

Q: In a hypothesis test, if the computed P-value is greater than a specified level of significance,…

A: A p-value is used in hypothesis testing to undertake the decision of supporting or rejecting the…

Q: Results from a civil servant exam are shown in the table to the right. Is there sufficient evidence…

A: a. The null hypothesis for testing is defined as, H0​: White and minority candidates have the same…

Q: A nutritionist believes that 10% of teenagers eat cereal for breakfast. To investigate this claim,…

A: Suppose that p is the population proportion of teenagers, who eat cereal for breakfast.

Q: a. What are the hypotheses for Mary's project? b. Verify the requirement for this hypothesis testing…

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Q: Your school newspaper reported that the percentage of students majoring in business (p) is at most…

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Q: If your claim is in the null hypothesis and you fail to reject the null hypothesis, then your…

A: If we fail to reject null hypothesis then we can say that, their is no sufficient evidence for claim…

Q: A real estate broker’s newsletter says the average price of a house in a metropolitan area is…

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Q: A Type l error is committed when a. a true alternative hypothesis is mistakenly rejected O b. not…

A: In a hypothesis testing, there are two type of errors, Type I error and Type II error.

Q: If your claim is in the alternative hypothesis and you reject the null hypothesis, then your…

A: Give, If your claim is in the alternative hypothesis and you reject the null hypothesis.

Q: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample…

A: Here critical value= +-1.96 Test statistics z = 2.20

Q: cause npo (1- Po) ▪O > 10, the sample size is und to one decimal place as needed.) less than 5% of…

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Q: In a research report, the term "significant" is used when the null hypothesis is rejected Select…

A: We know that when we said that a test is significant, we always reject the Null Hypothesis  This…

Q: The National Center for Education Statistics would like to test the hypothesis that the proportion…

A: GivenThe national center for education statistics would like to test the hypothesisthat the…

Q: 7. Refer to the Bayer Aspirin problem: a) Suppose the hypothesis-testing problem was changed to a…

A: According to the given information  Null hypothesis The hypothesis that there is no significant…

Q: When the population mean ( 'µ') is not equal to specified value of , then the alternative hypothesis…

A: There are 2 hypothesis in hypothesis testing: Null hypothesis  Alternate Hypothesis

Q: 3. In the case of hypothesis testing of one sample (for large samples): If α value is greater than…

A: Solution

Q: When the null hypothesis is not accepted using a t test, which of the following does it assume?   a.…

A: We know that the  the t-test is applied to test a random sample that comes from a particular…

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

A: Given that sample size  = 41 P-value =  0.041 significance level =  0.05

Q: Which of the following is not among the steps in Hypothesis Testing?

A: Here We will list the Steps for Hypothesis Test

Q: In a hypothesis test, the likelihood of rejecting the null hypothesis is independent of the sample…

A: Introduction: In a hypothesis testing problem, the decision regarding rejection/ failure of…

Q: Which of the following is the correct way of stating the null hypothesis of the given problem?

A: Test is that whether there is a relationship between the post-test scores of students in Algebra and…

Q: In hypothesis testing, which of the following/s is/are true? O a. A test result might include both…

A: 1.A test may include type and type 2 error both at a time. Because we can't eradicate any one of the…

Q: If your claim is in the alternative hypothesis and you fail to reject the null hypothesis, then your…

A: Given data: claim = alternative hypothesis and we fail to reject the null hypothesis, To decide:…

Q: Suppose in one sample hypothesis test, if the test statistic value is -1.09 and the table value is…

A: Given  test statistic=-1.09, tabulated=1.96

Q: If you use a 0.05 level of significance in a two-tail hypothesis test, what decision will you make…

A: Alpha = 0.05 Two tailed test Zstat = 1.2

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

A: Claim is that the mean systolic blood pressure of CEOs of major corporation is less than 134 mm Hg.…

Q: In hypothesis testing, which of the following/s is/are true? a. rejecting the null might lead to a…

A: Following is the table for Type 1 and Type 2 error :   Null Hypothesis is True Alternate…

Q: A teacher is comparing the mean study time of his freshmen and senior students. He believes that his…

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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: If the p-value is greater than a ,we do not reject the null hypothesis (p > * (a True False

A:

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

A: Given information- We have given that samples of Republicans, Democrats, and Independents have been…

Q: The overall question is: Is this sufficient evidence to say that the two true proportions are…

A: Here compare proportion of male and female said yes

Q: If the calculated test statistic falls in the rejection region, the statistical action is to…

A: Hypothesis Testing- In the domain of statistics, in order to analyze a large population data set, a…

Q: Which of the elements of a test of hypothesis can and should be specified prior to analyzing the…

A: In the field of statistics, a hypothesis is a claim about some aspect of a population. A hypothesis…

Q: If you use a 0.02 level of significance in (two-tail) hypothesis test, what is your decision for…

A: Here, α=0.02 Hypotheses: H0:μ=750Ha:μ≠750

Q: Traditionally In hypothesis testing, the null hypothesis represents the "status quo" which will be…

A: Note:  In null hypothesis (Ho), we always talk about equal sign such that (1)production of two…

Q: An ice cream company is interested to see if the proportion of people in this town who like…

A: Solution: It is given that 50% of people nationally choose chocolate as their favorite ice cream…

Q: In tests of significance, it is possible to reject the null hypothesis and yet still have a…

A: Given that the null hypothesis is rejected.

Q: a)When and why should you consider ad the significance level (Bonferroni correcti hypothesis…

A: 1 Bonferroni Correction 2 sampling from normal distribution 3 type I error 4 Type II…

Q: Which is the correct statement of the null hypothesis? Use data from Experiment 1 to answer this…

A: Given,  Claim : μ=7

Q: What is the observed test statistic for this test?

A: Given : n=20 , X=12 , p0=0.60 , α=0.01 Our aim is to find the value of the observed test statistic…

Q: What is the z-value for a two-sided hypothesis test on a population mean when a=.05?   1. 1.645…

A:

Q: This type of error in hypothesis testing is also known as a “false positive” result. A. Type I B.…

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Q: In hypothesis testing, which of the following/s is/are true? a. rejecting the null might lead to a…

A: 1. Rejecting null hypothesis leads to type 2 error. i.e rejecting the null hypothesis hypothesis…

Q: In a large University, a group of students is being charged with dishonesty in taking the final…

A: In the University, the group is being charged with dishonesty Also given that the discipline…

Q: An educator claims that the average salary of substitute teachers in the school districts in his…

A: Data given  $90,$86,$90,$85,$100,$85,$90,$85  Population mean μ=90,n=8

Q: A large manufacturing firm is being charged with discrimination in its hiring practices. (a) What…

A: Given data:  large manufacturing firm is being charged with discrimination in its hiring practices.…

Q: If your claim is in the alternative hypothesis and you fail to reject the null hypothesis, then your…

A: Conclusion of Hypothesis test : 1) If the claim is in H0 and you reject H0 , " there is not…