ge when smokers first start to smoke varies from generation to generation. A survey of 30 smokers of this generation with a sample standard deviation of 38 was done to see if the mean starting age is 19. The sample mean was 19.5. Suppose that you wish to test the null hypothesis H0: μ = 19 against the alternative hypothesis Ha: μ > 19. a) Determine the test statistic and P-value of the test. b) Do you reject the null hypothesis at si

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A: given data normal distributionmean(μ) = 31.2standard deviation (σ) = 4.6for x = 39.5Z = ?

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A: The Null Hypotheses is: H0 :µ =94 The Alternative Hypotheses is Ha: µ≠94

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A: Denote μ1, μ2 as the population mean for treatment and placebo groups, respectively.

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A: State the hypotheses.

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A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

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A: Solution: Let X be the GMAT score. From the given information, X follows normal distribution with…

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A:

Q: When 14 different​ second-year medical students measured the systolic blood pressure of the same​…

A: Given that, 14 different​ second-year medical students measured the systolic blood pressure of the…

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A:

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A: The provided sample means are shown below: Xˉ1=5.4\bar X_1 = 5.4 Xˉ2=5.2\bar X_2 = 5.2 Also, the…

Q: ppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.42 and a…

A: Given data,Mean μ=8.42sd    σ=1.52P(6.9<X<9.94)=?

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A: 1. Null Hypothesis: H0: The mean amount of time relief will be felt is not less than 25 minutes.…

Q: Starting engineers in the Philippines earned an average annual salary of P282,000. For the same…

A: GivenMean(x)=408000standard deviation(s)=274342sample size(n)=24α=0.1

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A: Sample size n=36 Sample mean x=48 Standard deviation σ=12

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A: Since you have posted question with multiple subparts,we will solve first three subparts for you.To…

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A: Given data is appropriate for z-test for single mean. because it is a large sample test .(n>30)

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A: The objective of this question is to determine whether there is a statistically significant…

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A: given data  claim : the mean systolic blood pressure of all healthy adults is less than 122 mm hg.…

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A: Given  μ=66, σ=6, n=9  We want to find the sample mean(x̄)

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A: Given data,μ=99σ=16E=5Z-value at 90% Confidence is Zc=1.645n=?

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A:

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A: The provided information is n=21α=0.05Test statistics is t=-2.2913Two-tailed test The degrees of…

Q: d. The p-value = e. The p-value is ? a f. Based on this, we should Select an answer the null…

A: Sample size n=11Sample mean=95.8Standard deviation=20

Q: Claim: The mean systolic blood pressure of all healthy adults is less than than 121 mm Hg. Sample…

A: Answer: - Given, Claim: The mean systolic blood pressure of all healthy adults is less than than 121…

Q: According to the World Health Organization, the average height of a one-year-old child is 29". You…

A: The test statistic is -4.4721 and the p-value is 0.00013.

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A: