The objective of a community research project is to determine whether women are more community conscious before marriage or after 5 years of marriage. A test designed to measure community consciousness was administered to a sample of nine women before marriage, and the same test was given to them 5 years after marriage. The test scores are: ITTIT Before After Before After Name Marriage Marriage 110 Name Marriage Marriage 186 196 Beth 114 Carol Jean 157 116 159 120 Lisa 116 Sandy Petra Sue 121 160 140 103 Cathy Mary 96 149 142 130 139 picture Click here for the Excel Data File a. Test at the 0.05 level. Ho is: There is no difference in community consciousness before and after marriage. Hị is: There is a difference.

Q: Do men score lower on average compared to women on their statistics finals? Final exam scores of…

A: There are two independent samples which are Male and Female. Both samples come from population which…

Q: A local company is interested in supporting environmentally friendly initiatives such as carpooling…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…

Q: During the Movement Control Order (MCO), the citizens spend more time at home with family. For that…

A: Given the data for  randomly asked 12 selected customers on the number of hours they spend watching…

Q: 5. An advertising agency in a large city is conducting a survey of adults to investigate whether…

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

Q: A survey was conducted in 2019, but the sample sizes were not reported. Suppose the results, based…

A: Dear Student, As per the guideline, I can solve only the first 3 subparts, Kindly ask the remaining…

Q: There is an archaeological study area located in southwestern New Mexico. Potsherds are broken…

A: Null Hypothesis:H0: The mean Mimbres classic black-on-white shred counts for the three sites are the…

Q: + → C O ezatest.com/testing/olaViewer.php * BSD A HOMEWORK Q Most Boring Class. Q Quizlet Live R AR…

A: Solution:-

Q: A private research organization studying families in various countries reported the following data…

A: Given: n = 8 Formula Used: Interquartile Range

Q: Twenty-two subjects are tested, given a training session, and then retested. What test do you…

A: Dependent samples: If the sample values from one population are associated or matched with the…

Q: A movie director who combines dark humor and neo-western in his films is curious about gender…

A: First we need to calculate mean and standard deviations for both the samples    For Males :…

Q: A movie director who combines dark humor and neo-western in his films is curious about gender…

A: There are two independent samples which are males and females. Both samples follows normal…

Q: In order to capitalize on the growth in ecommerce and the possibility to reduce operational costs,…

A: Given the data, gathered from 42 random persons about their preferences for shopping online and…

Q: The National Assessment for Educational Progress (NAEP) is a U.S. government organization that…

A: Scatter plot is the graphical representation of the relationship between two variables of a…

Q: We often describe our emotional reaction to social rejection as 'pain'. A study asked whether social…

A: a) Explanatory Variable: The variable that is used to explain or predict the response variable is…

Q: The national society of acupuncturists asked a random sample of 450 adults their opinion about…

A:

Q: The national society of acupuncturists asked a random sample of 450 adults their opinion about…

A:

Q: • The table below shows teenage driver gender and whether or not the respondent had texted at least…

A: Given table is      Male  Female Total Texted at least once while driving in last 30 days 5 7…

Q: 25. A psychologist developed a new test of adult intelligence. The test was administered to 20…

A: Arrange the data in ascending order, 98 99 102 103 103 104 114 115 117 118…

Q: A researcher is interested in investigating whether the military branch a person signs up for and…

A: a. The correct statistical test to use is Independence. b. Null and alternative hypotheses: H0:…

Q: An education researcher randomly assigns a group of 47 fourth grade students to receive a new…

A: Solution: State the hypotheses. Null hypothesis: That is, there is no difference between the two…

Q: The following table shows the percentage of U.S. college freshmen in the given year who believed…

A: Given data X 1996 2000 2004 2008 2012 Y 56.7 53.4 53.4 58.9 61.2 Using the extrapolation,…

Q: Tucson State University offers two MBA programs. In the first program, the students meet two nights…

A: (a). Identify the level of significance: Level of significance: Level of significance is the…

Q: An advertising agency in a large city is conducting a survey of adults to investigate whether there…

A: The given summarized table is,

Q: Ten students in a jazz history class were given a pre-test and post -test to see how much they…

A: In order to determine whether the post- test score are significantly higher then the pre-test scores…

Q: A company that sponsors LSAT prep courses would like to be able to claim that their courses improve…

A: A Test statistic: Initial Test Post Test d=Initial Test-Post Test 64 66 -2 68 63 5 62 71 -9…

Q: here is an archaeological study area located in southwestern New Mexico. Potsherds are broken pieces…

A:

Q: In a study of how chief executive officers (CEOs) spend their days, it was found that CEOs spend an…

A: A frequency distribution is a tabular, listed or graphical representation of data that shows the…

Q: Many supermarket chains and large retailers such as Tesco, Sainsbury’s and B&Q have installed self-…

A: Given data,               120 108 120 114 118 91 118 92 104 104 112 97 118 108 117 Claim: The mean…

Q: A movie director who combines dark humor and neo-western in his films is curious about gender…

A: There are two independent samples which are males and females. Both samples follows normal…

Q: A professor at the University of Iowa was interested in evaluating whether domestic dispute calls…

A: Solution: The contengency table  Officers Injury  Domestic Dispute  Not aDomestic Dispute  Row…

Q: a. how many degrees of freedome are there in this table? b.how many cells are in this table? c.…

A: a. The degrees of freedom for the given table is, Thus, the degrees of freedom is 1.

Q: A survey on acne treatments randomly selected 100 teenagers using topical treatments, 100 using oral…

A: The question is about Chi-Square test for Independence. There are 2 variables. Those are…

Q: To learn the effectiveness of an exercise regimen, a physical therapist randomly selects 10 women to…

A: The following information has been provided:   Sample 1 = Waist Line Before Sample 2 = Waist Line…

Q: Are avid readers more likely to wear glasses than those who read less frequently? Three hundred men…

A: Solution:- Given data    Amount of reading glasses(yes) glasses(no) Total Above average 47 26…

Q: A random sample of 200 new vehicle buyers were asked to respond to a survey about what kind of…

A: Given:   Car Truck SUV Van Other Total Male 34 14 30 21 13 112 Female 37 3 23 17 8 88 Total…

Q: A company contracts with a language institute to provide instruction in Spanish for its executives…

A: Given Table of pre and post-test of listening Spanish Find a,b,c part

Q: There is an archaeological study area located in southwestern New Mexico. Potsherds are broken…

A: I am using Excel and the command is as follows __________________________________________ Data…

Q: istered nurses, a study was designed to compare the two groups. The state nursing licensing board…

A: In this problem it has been asked to infer about the comprehensive training received by the nurse.…

Q: There is an archaeological study area located in southwestern New Mexico. Potsherds are broken…

A: Null Hypothesis: H0: The mean Mimbres classic black-on-white shred counts for the three sites are…

Q: The two-way table below shows teenage driver gender and whether or not the respondent had texted at…

A: Given data in the problem is  Total no.of male and female drivers=32 Texted atleast once=12  Had not…

Q: A local university boasts that its School of Engineering attracts the top students from around the…

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

Q: SJS Travel Agency, a nation wide local travel agency, offers special rates on summer period. The…

A: Given that -

Q: The Pew Research Center conducted a survey of randomly sampled American adults, asking them about…

A: Chi-square test of independence is used to test the dependency of categorical variables. The null…

Q: A samll town installed a Blue streetlights, in part, to help reduce crime in particular areas. The…

A: a) a. Null Hypothesis: H0: The number of claims were not reduced after installation of LED.…

Q: A random sample of 100 business majors was asked a series of demographic questions including major,…

A: Cluster bar charts: When we need to describe the relationship between categorical or ordinal…

Q: In 2015, Addison Group and Kelton surveyed the work preferences and attitudes of 1047 working adults…

A: In this context, the aim is to test whether the interest in leaving a current job for more money is…

Q: Below are data on gender and drink preference. How many women would you expect to like coke if the…

A: We have to find expected frequency Formula : Eij =Ri ×CjN Where , Ri corresponds to the total sum of…

Q: The national society of acupuncturists asked a random sample of 450 adults their opinion about…

A: Given observed data Expected value is given by Ei=row total*column total/grand total   High…

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.