Suppose you conduct a hypothesis test to determine whether or not the average age difference between married couples is less than 5 years. You conduct this test at the 0.10 significance level and come to the conclusion that 0.01 < p-value < 0.02. What is the correct decision?

Q: The display provided from technology available below results from using data for a smartphone…

A: Given,sample size(n)=40sample mean(x¯)=5.35sample standard deviation(s)=1.854193degrees of…

Q: Suppose you conduct a hypothesis test to determine whether or not the average age difference between…

A: Correct option is 1st The data does provide statistical evidence that the average age difference of…

Q: i. Identify the null and alternative hypothesis. i. State the decision rule. i. Compute for the test…

A: a.   i.   Denote p1, p2 as the true population proportions of smokers in urban and suburban,…

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Q: The display provided from technology available below results from using data for a smartphone​…

A: 1. The null and alternative hypothesis is obtained below: The claim of test is the population having…

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A: Null and the alternative hypothesis: Significance level, The technology output is, From the…

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A: Let μ denotes the population mean of data speed. Given that the level of significance α=0.05. The…

Q: A researcher wants to know whether athletic women are more flexible than​ non-athletic women. For…

A: Given observation   Let 1 denotes athletic women and 2 denotes Non-Athletic Women Hypothesis Null…

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Q: Choose the correct conclusion of a hypothesis test of the claim, “The population mean number of…

A: We are provided with the following statement in the question: “The population mean number of hours…

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A: GivenMean(x)=6.35standard deviation(s)=2.923842sample size(n)=60Test…

Q: Identify the null and alternative hypotheses Identify the test statistic Identify the P-value…

A: For Proctored :   For Nonproctored : Significance level = 0.05

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A: The random variable X follows normal distribution. The population mean is 5.00 Mbps. We have to test…

Q: A researcher examines whether a majority of individuals prefer to wear their seat belts when driving…

A: Hypothesis testing is an act in statistics whereby an analyst tests an assumption regarding a…

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A: From the given t test output we want to find correct choice.

Q: 1) Failure to reject a null hypothesis does not constitute proof that it is true, but rather…

A: 1) The given statement, “failure to reject a null hypothesis does not constitute proof that is true,…

Q: The display provided from technology available below results from using data for a smartphone…

A: Given data isMean(x)=3.38standard deviation(s)=1.145979sample size(n)=50significance level(α)=0.05

Q: You are a research assistant at a zoo. The question of your study is "Has the proportion of baby…

A: You are a research assistant at a zoo.  The question of your study is "Has the proportion of…

Q: Identify the null hypothesis, alternative hypothesis, test statistic, P -value, conclusion about the…

A: Given that: Sample size (n) = 100 The hypotheses can be written as: H0: p = 0.03 H1: p &gt; 0.03…

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A: Given, X be speed of data. μ= population meanα=0.05 = level of significancep value =…

Q: 3. Someone claims that a one year increase in the average age of birth mothers is associated with an…

A: Given that Someone claims that a one year increase in the average age of birth mothers is associated…

Q: b) The manager of the Postal Services claims that 98 percent of their mail are delivered on time. He…

A: Given that p = 0.98 Level of significance ( alpha) = 0.01 You have missed the first part of the…

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A: The null hypothesis is defined by the claim of the corresponding organization or company. On the…

Q: You are conducting a hypothesis test where alternative (research) hypothesis is that mu is greater…

A: The test statistic is independent of significance level.

Q: Assume a significance level of α=0.05 and use the given information to complete parts​ (a) and​ (b)…

A: From the provided information, Level of significance (α) = 0.05 The hypotheses can be constructed…

Q: A company believes that percentage of resident in BSP own vehicle is 60% or less. Sales manager…

A: Given information- Population proportion, p = 0.60 Sample size, n = 250 Significance level, α = 0.1…

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A: A hypothesis test is used to draw conclusions about the population parameter or compare the…

Q: Test the claim that the proportion of men who own dogs is significantly different than the…

A: The null and alternative hypothesis be  two-tailed   test statistic =  2.2p-value =  0.0285

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A: Given information Hypothesized mean = 4 Claim : - smartphone​ carrier's data speeds at airports…

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A: Given,claim: a population having a mean less than 6.00Mbps

Q: Employees from Company A and Company B both receive bonuses. What information would you need to test…

A: In testing of hypothesis we have different tests such as t-test, chi square test, t test, ANOVA,…

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A: Correct answer is (D)

Q: According to a recent poll, 53% of Americans would vote for an incumbent president. If a sample of…

A: Note: Hey, since multiple sub parts are posted, we will answer first three sub parts according to…

Q: The mayor of a town has proposed a plan for the construction of an adjoining community. A political…

A: Given data sample size, n = 800 population proportion,p= 0.73 sample proportion…

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A: Correct answer is  (D)

Q: Possible answers :   Reject H0. At the 5% significance level, the test results are not…

A: In given Hypothesis testNull Hypothesis : µ = 7Alternative Hypothesis : µ ≠ 7The test statistic is…

Q: The test statistic in a​ right-tailed test is z=-0.73. Determine the​ P-value and decide​ whether,…

A: Given information- We have given a right-tailed test statistic. Z = -0.73 Significance level, α =…

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,

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A: We have tk identify value of test statistics.

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Q: If a hypothesis test produces a z-score in the critical region, which decision should be made? O…

A: We know that the critical region is the region where always null hypothesis is rejected.......

Q: Given a P-value between 0.01 and 0.05, what conclusion should you draw at the 1% level of…

A: Given: p-value of a hypothesis test is between 0.01 and 0.05. Significance level, α=0.01.

Q: Using traditional methods it takes 101 hours to receive an advanced driving license. A new training…

A: Given in the question, the new technique may lengthen training time. So, the hypothesis is,

Q: Women athletes at a certain university have a long-term graduation rate of 67%. Over the past…

A: a) It is given that α =0.10.

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A: A hypothesis is said to be one (or left tailed), if the population parameter is less than some…

Q: ou are conducting a hypothesis test where alternative (research) hypothesis is that mu is greater…

A:

Q: The display provided from technology available below results from using data for a smartphone…

A: Let μ denotes the population mean. The clam is that they are from a population having a mean less…

Q: The test statistic in a​ left-tailed test is z=−0.59. Determine the​ P-value and decide​ whether, at…

A: Given, Left tailed test z = -0.59 10​% significance​ level,α = 0.1 P- value = P(Z &lt; -0.59) =…

Q: If a hypothesis test produces a z-score in the critical region, what decision should be made? a.…

A: Given that a hypothesis test produces a z-score in the critical region.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.