A 95% CI for true average serum-creatinine level was calculated as  (3.81, 3.95), based on a sample size of 20 peoples (after they received a newly proposed antibiotic) and the assumption that serum -creatinine level is normally distributed.Suppose you want to test H0: μ = 4 versus Ha: μ 4 using 5% level of significance. Without testing the hypothesis, can you write down the statistical conclusion you would make about the hypothesis. If not, then give reasons.

Q: he DASS-21 questionnaire is a validated measure of depression, anxiety, and stress. For the general…

A: Given that the mean for the anxiety for the population is 4.2 As it scales from the questions 0 to…

Q: If there is a main effect of maternal diet (alcohol vs non alcohol), is the main effect of maternal…

A: From the above figure, the significance value for diet variable is '0' which means there is no…

Q: A published report of a repeated-measures research study includes the following description of the…

A: Given information: The result show significant difference among the treatment condition. F(2,…

Q: When interpreting F (10, 29) = 4.78, p > 0.05, how many subjects were tested in this simple one-way…

A: The F-statistic is a ratio of two sample variances, and it is commonly used in hypothesis testing to…

Q: Familywise error rate for 5 samples from 5 independent populations with 99% CI is:     0.049…

A: It is given that, Confidence level =99%=0.99 n =5

Q: A study assessed the lung destructive index among smokers and non- smokers provided the following…

A: H0 : The smokers and non smokers have the same lung damage i.e. μ1=μ2 H1 : The smokers have greater…

Q: In a study of carbohydrate diet, an investigator wishes to test a hypothesis test for whether the…

A: Given that, mean is 5.20   and standard deviation is 1.3   n is 30 We ei use one sample z-confidence…

Q: At 5% level of significance, using the information: X,= 47; S1= 4; n1=11; X2= 39; S2= 3; n2= 11,…

A:

Q: Is your index finger longer than your ring finger? Or is it the other way around? It isn't the same…

A: The hypothesis is, Null hypothesis: H0: There is no association between gender and relative finger…

Q: Interpret the following statement regarding the statistical findings of a research study.  “61% (n =…

A: Introduction: The outcome of a study involving low-carbohydrate and low-fat diets is given.

Q: omen are recommended to consume 1810 calories per day. You suspect that the average calorie intake…

A: 1899   1642   1719   1669   1685   1528   1650   1725   1825   1754   1497…

Q: In developing a generic drug, it is necessary for a manufacturer of biopharmaceutical products to…

A: We have given that  Sample size n =20 Sample mean =18.22 Standard deviation =0.92

Q: 20 out of 200 men randomly selected in a region and 30 out of 300 women are against vaccination.…

A: From the provided information,

Q: The test statistic is 1.26. Which of the following is the best interpretation of this value?

A: Given that  Test statistic is given by Z = 1.26

Q: Two types of valves are being tested to determine if there is a difference in pressure tolerances.…

A: The objective of this question is to determine if there is a significant difference in the pressure…

Q: To help assess the health risks of second-hand smoke, the levels of cotinine (a metabolite of…

A: Given Information: The levels of cotinine (a nicotine metabolite) in the urine of seven volunteers…

Q: Researchers wanted to measure the effect of alcohol on the development of the hippocampal region in…

A: The following information has been provided: Normal Volume provided (μ)(\mu) =  9.029.02…

Q: Explain why you should get a much better prediction for μ by using x from a sample size n rather…

A: The confidence interval on mean is given as x-Zα2sdn≤μ≤x-Zα2sdn where  μ=population meanx=sample…

Q: Women are recommended to consume 1770 calories per day. You suspect that the average calorie intake…

A: For the given data Perform t test for one mean

Q: Did the authors note any differences in gender with regard to fish consumption and inflammatory…

A: HI, as per our policy, we'll answer the first three subparts for you.  Given:

Q: Dr. Palmer found a small treatment effect. What can she do in improve her changes of finding a…

A: To improve her chances of finding a statistically significant result, Dr. Palmer has to follow some…

Q: The recidivism rate for convicted sex offenders is 9%.  A warden suspects that this percent is…

A: The provided data is, The sample proportion is,

Q: The results of a study that used an independent samples t-test was t(28) = 2.14, p = .01. Based on…

A: t(28) means that degree of freedom  = 28 Now, degree of freedom for a t-test one sample case  = n-1.

Q: A market researcher wanted to evaluate the difference in credit charges for customers of Bracy’s.…

A:

Q: c) Suppose ₁ and ₂ are the population mean blood glucose levels of diabetic patients with good and…

A: Hypothesis testing Given mean difference=-6.762 and std. error of difference (SE)=1.891 Degrees of…

Q: A repeated-measures study comparing two treatments with a sample of n = 4 participants produces MD =…

A:

Q: The mean gene expression in at least one group is significantly different from the mean gene…

A: We have given that From ANOVA test the pvalue is less than significance level 0.0001 We have to…

Q: A research company wants to determine whether there is a difference in effectiveness of a brand-na…

A: Answer:A research company wants to determine whether there is a difference in effectiveness of a…

Q: Is the correlation significant at α=0.05? Use the table of critical values for R to decide Sample 27…

A: Solution-: Given: n=27,R=0.775 We check, Is the correlation significant at α=0.05?

Q: A published report of a repeated-measures research study includes the following description of the…

A: The provided information is:

Q: If your critical value is ±1.96 and your z-value is -2.44, do you reject that the sample mean…

A: From the given information,   Critical Value: ±1.96 z-value: -2.44

Q: end up falsely concuding that the population mean calorie intake for women at your college is more…

A:

Q: How many subjects participated in an independent-samples t-test if a researcher reports, t (20) =…

A: Given information- We have given an independent-samples t-test. The value of test statistics is- t…

Q: The claim is that for a smartphone​ carrier's data speeds at​ airports, the mean is μ=18.00 Mbps.…

A: Given information Hypothesized mean µ = 18.00 Mbps Sample size (n) = 24 The value of test…

Q: H1: p v (Please enter a decimal) c. The test statistic zv = (please show your answer to 3 decimal…

A: From the given What is the Alternative hypothesis Test statistic (z ) =? P value = ?

Q: A sample analysis of examination results of 500 students was made. It was found that 220 students…

A:

Q: Dr. Stevenson reported the following in a journal: “F (4, 106) = 10.09, p = .04.”  Should Dr.…

A:

Q: A nutrition store in the mall is selling "Memory Booster," which is a concoction of herbs and…

A: Solution: Given information: n= 16 Sample size M= 24  Sample mean μ= 20  Population meanSS= 960 sum…

Q: A normal population has a mean of μ = 25 on a communication effectiveness scale. After receiving a…

A: From the provided information, Sample size (n) = 4 Level of significance (α) = 0.05

Q: 52% of students entering four-year colleges receive a degree within six years. Is this percent…

A: p=0.52p⏞=129231 The test statistics is z=p⏞-pp(1-p)n=129231-0.520.52(1-0.52)231=1.169458≈1.169 The…

Q: es increased sleep lead to better SAT scores?  A sample of 11 participants slept for at least 10…

A: Solution: Given information: n= 11  Sample size  Test statistic t= 2.00 Degree of freedom = df = n-1…

Q: The claim is that for a smartphone​ carrier's data speeds at​ airports, the mean is μ=11.00 Mbps.…

A: We have to find  p value..

Q: . Do the sample data support the conclusion that the Memory Booster has a significant "booster"…

A: Answer:-  Our hypothesis is, H0 : u=20   vs   H1 : u>20 Given that, n=16 xis 26 Variance=64…

Q: You are comparing the variability of two groups of data to see if they come from the same…

A: Solution: From the given information, level of significance is 0.05, the two sample sizes are 11 and…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.