Birth weight s of newborns at a hospital have a normal distribution with a mean of 110 oz. and a standard deviation of 15 oz. A) What is the percentile if a newborn is about 120 oz?(show work)   B) What birth weight does a newborn baby have to be in the upper 2.5%?(show work)

PLEASE ONLY SELECT THE ANSWERS AS SHOWN FOR THE MULTIPLE CHOICE, SUCH AS OPTION 1, 2, ETC.   1) In a test of the effectiveness of garlic for lowering​ cholesterol, 49 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes​ (before minus​ after) in their levels of LDL cholesterol​ (in mg/dL) have a mean of 0.8 and a standard deviation of 1.51. Use a 0.10 significance level to test the claim that with garlic​ treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic​ treatment? Assume that a simple random sample has been selected. Identify the null and alternative​ hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative​ hypotheses? A. H0​: μ=0 mg/dL H1​: μ<0 mg/dL B. H0​: μ>0 mg/dL H1​: μ<0 mg/dL C. H0​: μ=0 mg/dL H1​: μ≠0 mg/dL D. H0​: μ=0 mg/dL H1​: μ>0 mg/dL…

The glucose readings are 95, 86, 84, 107, 101, 112,85,86. The sample mean is 94.8, it is a normal distribution  wirh the standard devian is 12.5, and the mean glucose is 85. Do these data indicate that Ben has an overall average level higher than 85? Use a=0.05, what is the level of significance? Compute z value of the sample test statistic. Find p value

only need letter answer, no work needed

Scores on the ACT college entrance exam follow a normal distribution with mean 21 and standard deviation 5. Wayne's z-score on the ACT was -0.6. What was Wayne's actual ACT score? O 18 O 3 O 16 O 13 24

The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS-electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 33 smokers found that their mean starting age was 12 years old. What type of test should you use? A) z-test for population mean B) t-test for population mean C) z-test for population proportion

Score last try: pts. See Details for more. You can retry this question below For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 28 students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 3.1 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between 12.41 X hours and 13.58 x hours on Statistics each week. b) 95% of the students spend between 11.82 X hours and 14.7 X hours on Statistics each week. c) 99.7% of the students spend between 11.24 X hours and 14.76 X hours on Statistics each week.

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Show work   Researchers conducting a study of 15 children with a diagnosis of ADHD wish to assess whether the BMI of the children is correlated with degrees of hyperactivity in the child. The BMI of the children is shown in the image. Please calculate the Standard Deviation of the BMI for the children, and report to the hundredths place (e.g. 26.789 is rounded 26.79)

pls find the attached file.