A researcher suspects the mean trough (the lowest dosage of medication required to see clinical improvement of symptoms) level for a medication used to treat arthritis is higher than was previously reported in other studies. If previous studies found the mean trough level of the population to be 3.7 micrograms/mL, and the researcher conducts a study among 93 newly diagnosed arthritis patients and finds the mean trough to be 6.1 micrograms/mL, with a standard deviation of 2.4 micrograms/mL, calculate the z value for the test statistic.

Q: An aim of this study was to evaluate if there is a difference after the GFCF (gluten-free,…

A: Given that: Mean of paired difference, d¯=1 Standard deviation of paired difference, sd=3…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 64 subjects were treated with raw…

A: Given that  Sample size n =64  Difference of Mean =0.3 Standard deviation =16.2

Q: Low‑density lipoprotein, or LDL, is the main source of cholesterol buildup and blockage in the…

A: The 68-95-99.7% Rule:For a normal distribution, the empirical rule (68-95-99.7% Rule) state that…

Q: In a test of the effectiveness of garlic for lowering​ cholesterol, 81 subjects were treated with…

A:

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: mu = 3.7 n = 91 s = 1.2 xbar = 6.1

Q: The mean and standard deviation of hemoglobin level of 23 vibrant students and 21 school children…

A: We have to test claim.

Q: ..... What are the null and alternative hypotheses? OA. Ho: H= 0 mg/dL O B. Ho: u>0 mg/dL H1: µ0…

A: Given data : sample size, n =81 sample mean, x̄ = 0.8 sample standard deviation,s=…

Q: garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus…

A: From the provided information, Sample size (n) = 81 Sample mean (x̅) = 0.9 Sample standard deviation…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects Were treated with raw…

A: Given,sample size(n)=81sample mean(x¯)=0.3standard deviation(S)=20.9α=0.10

Q: Low‑density lipoprotein, or LDL, is the main source of cholesterol buildup and blockage in the…

A: 68-95-99.7% rule:In normal distribution, the empirical rule of 68-95-99.7% rule states that 68% of…

Q: test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with raw…

A:

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: Null Hypothesis (H0) : μ ≤ 3.7 Alternate Hypothesis (Ha) : μ > 3.7 Given, mean (xbar) = 6.1 σ =…

Q: An endocrinologist is interested in the effects of depression on the thyroid. It is believed that…

A: It is given that the p value is 0.0124 and the test is whether the mean thyroxin level is different…

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: The objective is to check whether the level for a medication used to treat arthritis is higher than…

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A:

Q: Arsenic occurs naturally in some ground water and can be toxic. A mean arsenic level of μ=9 parts…

A: Given that α=0.005. Hence, the level of significance is 0.005.   The appropriate Null and…

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: The hypotheses for the test are given below. Null hypothesis: H0: µ = 3.7 Alternative hypothesis:…

Q: the mean and standard deviation of hemoglobin level of 23 vagrant students and 21 school children…

A: Given Information: Vagrant students: Sample size n1=23 Sample mean x¯1=10 Sample standard deviation…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with raw…

A:

Q: The National Center for Health Statistics reports that the LDL cholesterol for adults has a mean of…

A: Sample size n=23 Sample mean=144.3 Population standard deviation =40

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: GivenMean(x)=6.1standard deviation(s)=1.2sample size(n)=93level of significance=1%

Q: researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: given data, n=93X¯=6.1Stanadard deviation =2.4claim:μ>3.7hypothesis:H0:μ=3.7H1:μ>3.7

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: A researcher studies the mean trough level for a medication used to treat arthritis. The previous…

Q: In a test of the effectiveness of garlic for lowering​ cholesterol, 81 subjects were treated with…

A: Given data: Sample size (n) = 81 Mean(x-bar) = 0.8 Mean ( μ ) = 0 Standard deviation  = 15.9…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw…

A: Here , T- test is applicable

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: Given; n=93x¯=6.1σ=2.4 Null and alternative hypothesis for this data is given as-…

Q: What are the null and alternative hypotheses? O A. Ho: =0 mg/dL O B. Ho: =0 mg/dL H1: u#0 mg/dL O D.…

A:

Q: Determine the P-value. O (Round to three decimal places as needed.)

A:

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: Given: From the data, sample mean is  = 6.1 and the Sample standard deviation is s = 2.4, and the…

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: The correct answer is, H0: µ = 3.7 micrograms/mL; H1: µ > 3.7 micrograms/mL; alpha= 0.01.

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: It is given that- Level of significance is 1%. And we know that level of significance is denoted by…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw…

A:

Q: A researcher suspects the mean trough (the lowest dosage of medication required to see clinical…

A: Decision is based on whether the alternate hypothesis is Left-tailed, two-tailed or right-tailed.…

Q: Low-density lipoprotein, or LDL, is the main source of cholesterol buildup and blockage in the…

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