A laboratory research group did a microarray experiment five years ago with 10 subjects in the normal group, and 6 subjects in the diet group; one microarray per subject. They never published their results because they felt like their diet group was too small. Now they have more money and they want to get 4 diet animals, and run 4 new microarrays on those animals. They plan to add that data to their study so they can increase their statistical discovery power, and finally publish their results.   Although increasing the number of subjects should increase the statistical power of the study, give a reason why increasing the number of samples might NOT result in more significant results.

Q: Smoking is a risk factor affecting patient’s cardiovascular system (and not only cardiovascular…

A: Hypothesis test are broadly classified into two types, they are parametric and non parametric test.…

Q: How many females and males of the sample have satisfying non- academic performance inspite of having…

A: Given information: Total population of first-year optometry students from DDC = 65 20% of the sample…

Q: By how many times does the sample size have to be increased to decrease the margin of error by a…

A:

Q: After running the small study, Mary is planning a big study with 600 customers. The customers will…

A: It is an important part of statistics. It is widely used.

Q: One variety of corn is genetically modified to produce chemicals for defense against predators. The…

A: Let xi;(i=1,2,...,n1) and yj;(j=1,2,...,n2) be the two independent samples with S12 and S22 sample…

Q: The blue catfish (Ictalurus Furcatus) is the largest species of North Amercian catfish. The current…

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

Q: Two separate samples receive two different treatments. The first treatment group (N = 15) has a mean…

A: n1=15, x¯1=50, SS1=210n2=9, x¯2=56, SS2=190

Q: Workers in the office like to drink coffee during work. A doctor is concerned about this situation…

A: We want to test the hypothesis by using t test

Q: Subject Treatmen Gender Fam-Hist Age BP-Before-Exp BP-After-Exp D1 1 F PS 65 103.3 80.5 1 F 1 M D2 N…

A: A data can be raw or grouped, with some pro and cons associated with both of them. The raw data has…

Q: How can we know that the sample size of A is less than B? The sample size of both is not stated in…

A: Here we have to explain How can we know that the sample size of A is less than B

Q: If the population of city A is 20 000, so the computed sample size is less than 5% of population…

A:

Q: Method 1: recruit volunteers who are willing to participate. randomly assign each participant to…

A: Given, Method 1: recruit volunteers who are willing to participate. randomly assign each participant…

Q: What are the advantages of conducting experiments with more than two groups or conditions?

A: To find: What are the advantages of conducting experiments with more than two groups or conditions?

Q: Can you please show all your work to solve the problem? I need to be able to do it by myself. Thank…

A: Given : Sample size of female students (n1) = 50 Sample size of male students (n2) = 60 Let X1 : No.…

Q: Subject Treatmen Gender Fam-Hist Age BP-Before-Exp BP-After-Exp D1 1 F PS 65 103.3 80.5 1 F 1 M D2 N…

A: The box and whisker plot is use to see the quartiles of the data in the plot.It helps to find out…

Q: The inflammation caused by osteoarthritis of the knee can be very painful and can inhibit movement.…

A: Given that: Leech (Group 1): x¯1=52.4s1=13.9n1=24 Topical gel (Group 2): x¯2=52s2=16.6n2=27

Q: True or False: Bigger samples can always offer better predictions comparing to smaller samples

A: Small sample has a bias.bias is difference between extpected and true value of parameters under…

Q: As the manager of a fashion brand, vou have recently run a large scale campaign to draw attention to…

A: Consider the partial output of SPSS The level of significance is, α=0.05 Decision rule: Reject the…

Q: Based on past surveys over several years, a small business believes that 85% of their customers are…

A: Solution: Let X be the random variable that the number of customers satisfied with their services.…

Q: A statistician wants to determine if there is a difference in the fuel efficiency of cars between…

A: Given info: The claim of the test is there is a difference in the fuel efficiency of cars between…

Q: Mechanical engineer Kwok Wai Tham of the National University of Singapore set out to sample how much…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these…

A: Given: Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of…

Q: Is there a particular acid reflux drug that is more effective? To answer this question, we will use…

A: The test statistic is given below: χ2=∑Oi-Ei2Ei   Here, Oi represents the observed values Ei…

Q: 3 months 6 months 9 months 1.00 5.43 5.20 1.74 3.06 5.68 1.03 2.52 3.07 4.23 3.96 5.11 1.25 6.32…

A: An ANOVA is a statistical tool used to test the population mean of two or more than two groups.…

Q: You are part of a research team in the newly formed University of California Center for Climate,…

A: If you are interested to construct the confidence interval about the true average, the formula for…

Q: A group of researchers wants to know whether men (population 1) are more likely than women…

A:

Q: he research and development​ (R&D) department of a paint manufacturer recently developed a new paint…

A:

Q: ou are a medical researcher that wants to determine if your new drug can lower people's blood…

A: The appropriate test is ANOVA (Analysis of Variance).

Q: The data in the attached image represents blood pressure based on a new trial medication used in an…

A: Given information: Treatment Gender Fam-History Age BP-before Exp BP-After exp 1 F PS 65 103.3…

Q: TDaP is a booster shot that prevents Diphtheria, Tetanus, and Pertussis in adults and adolescents.…

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

Q: A researcher has a limited amount of time and money, so they want to choose the research design that…

A: Correct option is (A) The related samples t-test  It is also known as Dependent t test and paired t…

Q: FUSA-express is a small express delivery company with hubs in Los Angeles, CA, Denver, CO; Dallas,…

A:

Q: OMean (a) For these data, which measures of OMedian central tendency take more than one value?…

A: Answer:-  1)Mode. Mode of the data=2. 2)If 18 replaced by 39 then Mean would be affected by change.…

Q: How many samples of size 5 can be chosen from a population of size 8?

A:

Q: An analysis is performed on vacant land parcels in the city of Thunder Bay to find out whether or…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: let us say that the weightlifting supplement company informed you that how long a female…

A: Introduction: We need to state the research question, identify the parameter, and provide the…

Q: Imagine you are a statistical consultant and your client, a weightlifting supplement company, is…

A: Introduction: It is required to state the research question, identify the parameter, and provide the…

Q: researcher hypothesizes that the regions in the US feel differently about Hip Hop Music.  To test…

A: Applying ANOVA test for a single factor, Given, SS(between)  = 76.1335 SS(within) = 100.71 SS(Total)…

Q: a) There is enough evidence to infer that the second method is more consistent than the first…

A: Given : For method 1 given data : 8.8,9.6,8.4,9.0,8.3,9.2,9.0,8.7,8.5,9.4

Q: This my third time posting the same question. Because no one answer it straight to me. I already…

A: 1)From the provided information, The sample number of students watching video (n) = 19 The number of…

Q: A coffee company wants to determine how long caffeine lasts throughout the day when individuals have…

A: It is an important part of statistics. It is widely used.