Researchers have determined that a person uses an average of 40 tissues during a cold. Suppose a random sample of 2500 people yielded the following data on the number of tissues used during a cold:   Suppose the corresponding test statistic falls in the rejection region at  What is the correct conclusion?

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A: Given, µ = 50 M = 55 s2 = 64  s = 8

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A: Given: p0=0.5x=17    n=25p^=1725=0.68

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Q: In a test of Ho: µ = 100 against Ha: µ 100, a sample of size 80 produces z = 0.8 for the value of…

A: Given: z =0.8 The null and alternative hypothesis are: H​0​​: μ=100 H​a​​: μ≠100 It is a two tailed…

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A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

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A: Solution Decision : Do not Reject Ho. There is not enough evidence to support the claim that at…

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A: We have Population proportion for a grinding machine produces defective part p = 8% = 0.08 We also…

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A: Given that,sample one, x1 =469, n1 =1800, p1= x1/n1=0.2606sample two, x2 =531, n2 =2000, p2=…

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A:

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A:

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A: State the hypotheses:  H0:μA=μB=μC=μD  HA: At least one mean is different. (claim) The level of…

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A: Given that  Sample size n =80 Favorable cases x =54 Sample proportion p^=x/n  =54/80 =0.675 NOTE:-…

Q: Conduct a test at the alphaα=0.10 level of significance by determining ​(a) the null and…

A: a.Hypotheses:Here p1 and p2 be the two proportions. The aim is to check whether p1>p2. The null…

Q: A Z-test for single population mean is conducted with Ha: u < 10, at significance level of 0.05, The…

A:

Q: A sunscreen company is attempting to improve upon their formula so that it lasts in water longer.…

A: Consider that, µA, µB, µC and µD define the mean lifespan of sunscreen A, B, C, and D, respectively.

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A:

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

Q: A sunscreen company is attempting to improve upon their formula so that it lasts in water longer.…

A: The hypotheses for this ANOVA test would be:  H0:μA=μB=μC=μD HA:HA: At least one mean is different.…

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A: Given that  Sample size n =15 Population mean μ =900

Q: In a survey of 1000 drivers from Region A, 854 wear a seat belt In a survey of 1000 drivers from…

A:

Q: Listed below are the lead concentrations in mu ​g/g measured in different traditional medicines.…

A: The null hypothesis is Ho: u=20 mu g/g The alternative hypothesis is Ha:u&lt;20 mu g/g

Q: Estimate the P-value for a test of H0: μ = 500 versus H1: μ < 500 with test value t = -1.738 and a…

A:

Q: A sample of size 40 provided a test statistict = -1.6. Use a = 0.10. The conclusion is:

A:

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A:

Q: In a survey of 200   females who recently completed high​ school, 75 ​% were enrolled in college.…

A: Answer:-

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A:

Q: The National Highway Traffic Safety Administration reports the percentage of traffic accidents…

A: As per our guidelines, we are allowed to answer first three sub-parts only. thanks   If the…

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A: Given: n1=95x1=14n2=100x2=26α=0.05

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Q: A large automobile insurance company selected samples of single and married male policyholders and…

A: Given Information :  A large automobile insurance company selected samples of single and married…

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A: State the hypotheses. That is, there is no evidence that the proportion of the defective parts is…

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A: Consider that μ defines the population mean score.

Q: A sample is selected from a population with μ= 50. After a treatment is administered to the…

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Q: In a 4-week study about the effectiveness of using magnetic insoles to treat plantar heel pain, 51…

A: (a) The null and alternative hypotheses are: Ho: p_1 = p_2Ho:p1​=p2​ Ha: p_1 \ne p_2Ha:p1​̸​=p2​…

Q: A kinesiologist claims that the resting heart rate of men aged 18 to 25 who exercise regularly is…

A: Group 1: Regular exercise x1 = 63, n=40 and s=1.0 Group 2 : No Regular exercise x2 = 71, n=30 and…

Q: The National Highway Traffic Safety Administration reports the percentage of traffic accidents…

A:

Q: A cigarette manufacturer claims that his cigarettes have nicotine content that does not exceed 2.0…

A: The descriptive analysis is conducted using EXCEL. The software procedure is given below: Enter the…

Q: An agriculturist claims that she has cultivated a new variety of orange that has a significantly…

A: Solution

Q: A common characterization of obese individuals is that their body mass index is at least 30 [BMI =…

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Q: In a random sample of 320 cars driven at low altitude, 40 of them exceeded the standard 10 grams of…

A: Solution: It is required to find the test statistic. The formula for finding the test statistic is:…

Q: The Substance Abuse and Mental Health Services Administration (SAMHSA, 2017) estimates that 10.9% of…

A: The value of p is 0.109.

Q: Under random assignment, is beta 1^ an unbiased estimator of the average treatment effect (ATE)? ATE…

A: Given information: It is asked to find the unbiased estimator of the average treatment effect.

Q: What sample size should be used in a study conducted to estimate the average monthly absences of…

A:

Q: A sunscreen company is attempting to improve upon their formula so that it lasts in water longer.…

A: Consider that, µA, µB, µC and µD define the mean lifespan of sunscreen A, B, C, and D, respectively.

Q: A 2011 survey, by the Bureau of Labor Statistics, reported that 91% of Americans have paid leave. In…

A: Thanks for giving opportunity to serve for bartleby students,   Hey, There ! Thank you for posting…