We predict that children exhibit more aggressive act after watching a violent television show. The scores for ten children were recorded before they watched a violent show and then after they watched a violent show. Aggression was measured in terms of number of aggressive acts (e.g. hitting, yelling, kicking etc).   Sample 1 (after TV show): 5,6,4,4,7,3,2,1,4,1 Sample 2 (before TV show): 4,6,3,2,4,1,0,0,5,2   Is this a one-tailed or two-tailed test?

Q: what is atypical sample

A: Atypical sample means something Unusual

Q: According to online resources, about 8% of all males have some color perception defect, most…

A: Given,8% of all males have the same color perception defect, most commonly red-green…

Q: Professor obtained the following set of scores from a 10-point quiz for a class of 26 students:{8,…

A:

Q: A) We have just conducted a study examining how much math anxiety students experience after taking a…

A:

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: 2. A company is taking a survey of its employees and separates them into the following groups:…

A: 2. Experimental Study: If some treatments are applied on the individuals in order to observe the…

Q: 11, 15, 23, 29, 19, 22, 21, 20, 15, 25, 17, 13 What is the median? What is the IQR? What is the…

A: Obtain the value of median   The value of median is obtained below as follows:   Use EXCEL Procedure…

Q: find sample variance   41,45,48,49,52,53,55

A:

Q: 5. Make an inference about your population. You must write one or more sentenčėš, even if you have a…

A: Histogram shows data points in a graphical format.

Q: LIST OF ALL SAMPLES OF SIZE 5 IN A POPULATION 2,5,6,8,10,12,13

A: Reviewing information, given population is 2,5,6,8,10,12,13

Q: There are eight true or false questions in an exam. What is the sample space?

A: Sample space= ?

Q: ne following data répresent the starting salaries for recently graduated (to the nearest thousand…

A:

Q: How to Assign Subjects in random assignment?

A:

Q: Product codes in a manufacturing company having 2, 3, or 4 letters are equally likely. What is the…

A: There are two types of distributions, they are discrete and continuous distribution. If all the…

Q: artha has 12 mugs in her cupboard. 6 are purple 3 are yellow 2 are white and 1 is black. What is the…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: We want to learn about the country of origin, gender, NYC borough of residence, ethnicity, and age…

A: A sample is a subset of a population, whereas a population is a full set that represents every…

Q: (b) Give the best estimate for p and give the margin of error for the estimate. Round your answers…

A: Given n=1060 X=605

Q: Students in a statistics class at Penn State were asked, “About how many minutes do you typically…

A: 1) The assumptions necessary for performing the two-sample t-test, such that the results obtained…

Q: The ages of als learners in bagong pag ASA community learning center are…

A: Random Sampling: if a sample is drawn from a given population in such a manner that each member of…

Q: The President of the University of Michigan would like to know more about students on campus. He…

A:

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests."…

A: Given information: Sample of 200 buses and find that 20 buses fail the safety inspection. Let us…

Q: Please fill in as many blanks as you can. But if possible, prioritize the blanks in chart last. I'm…

A: Given the cross tabulation between favor or oppose death penalty for murder and respondent sex.…

Q: A researcher was interested in studying the effects of job insecurity on employee job attitudes.…

A: Given information: The data represents the opinions of employees of several characteristics. The…

Q: Ten students took a test in a statistics course and got the following marks: 6, 2, 8,4, 10 ,8 , 4 ,…

A: We have to find out given mean..

Q: Suppose one of these persons is selected at random, compute P(C₂ or 1₂). Select one: O a. 0.571 O b.…

A: Given that   C2 = 665 , I2 = 334 C2 and I2 = 166

Q: Question 1 Sample: 2, 1, 3, 0, 1, 3, 6, 0, 3, 3, 5, 2, 1, 4, 2 What is the mean? Selected Answer:…

A:

Q: How many degrees of freedom does your sample contain?

A: Given that  Sample size=n=30 Formula for degree of freedom  df=n-1

Q: 3. A. A sales manager at Cherry Lake Tree Farm in Lake County believes that the mean number of days…

A: Given claim is The mean number of days per year that her company's sales representativesspend…

Q: Independent or Dependent Sample? Same students retake the test but get a review first Group of…

A: Given that the same students retake the test but get a review first. So depending on the review from…

Q: What is the Sample Variance for the following numbers: 84, 66, 44, 17, 11, 65, -5, 51, 88

A: Given data  84, 66, 44, 17, 11, 65, -5, 51, 88 Find sample variance ?

Q: List all samples of size 3  2, 5, 6, 8, 9

A: Given information: Need to list all the samples of size 3. The observations are: 2,5,6,8,9. The…

Q: rolled

A: We have 2 coins ,for this we have 2*2= 4 sample points.    I.e {HH,HT,TH,TT} And for a die we have…

Q: There are 15 mobile phones in a package box, 8 of which are iphones. If a person takes 5 phones from…

A: Number of mobile phones=15 Number of iphones=8 Number of phones selected from the box=5 The…

Q: We wish to gather some information relating to the average time a hospitalized Eagle Flu patient…

A: The following data set is about the flu patients who spent the number of days that in the hospital.…

Q: Is there a significant difference among the scores of the different groups?   Group 1 Group 2 Group…

A: To determine whether there is a significant difference among the scores of the different groups, a…

Q: 3. What is the sample mean for the following sample of scores? Scores: 1, 2, 5, 4

A:

Q: What is the mode of following scores

A: Mode of data is/are highest frequent data

Q: New York State has approximately 250,000 employees across over 70 state agencies, commissions and…

A: Given information: New York State has approximately 250,000 employees across over 70 state agencies,…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.