dentify the research designs of the following. Whether it is CORRELATIONAL, DESCRIPTIVE, or EXPERIMENTAL. 1. Social Media Influence in the COVID-19 Pandemic 2. The Impact of COVID-19 on Social Media Marketing 3. The New Normal of Increased Online Business 4. Internet Availability at Home and Student's Average Sleeping at Night 5. Social Media Involvement and Practices of Grade 12 ABM Students 6. The Effect of the Use of Local Packaging Material on the Shelflife of Product 7. The Marketability of Innovative Products to SHS Students 8. Children of Single Parents and Their Level of Math Anxiety

Q: an or me ential rating. Use a = 0.05 and the foll Purchase Rating lual After Before 7 7 6. 67

A: given: a) Step1: The null and alternative hypotheses are as follows versus ;H0:d¯≤0versusHa:d¯>0

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A: In a 22 factorial design with different participants in each cell, the subjects under study are…

Q: e the p-value. (Round your answer to four decimal places.) ur conclusion. o not reject H,. There is…

A: The objective is to test whether the mean difference has higher potential Let μd be the mean…

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A: The question is about correlation and regression Given :   To find : a ) Value of correlation…

Q: This paper reports the prevalence of obesity in the US based on World Health Organization’s (WHO)…

A: Given odds ratios for the variables are, Variable Odds Overweight 1.08 Obese 1.21 Severely…

Q: 6.13 A firm has a generous but rather complicated policy concerning end-of-year bonuses for its…

A: aThe population of interest in this study are  lower-level managerial employees (both males and…

Q: A regional retail corporate team is contemplating a decision to purchase an automated  customer…

A: (a)   Obtain the probability that none will automatically opt to talk to a live operator.   The…

Q: Omitting a variable from our model that has a causal effect on our dependent variable always leads…

A: 29) Omitting a variable from our model that has a casual effect on our dependent variable always…

Q: A regional retail corporate team is contemplating a decision to purchase an automated  customer…

A: In the question given that  The mean cost of a phone call handled by an automated menu customer…

Q: A market research firm used a sample of individuals to rate the purchase potential of a particular…

A: The following has been provided: After Before 6 5 6 4 7 7 4 3 3 5 9 8 7 5 6 7…

Q: Determine if there is a significant positive correlation between the sets of data at a 10%…

A:

Q: For the two questions below, consider the StatKey 3ʳᵈ ed. dataset CocaineTreatment.  If we assume…

A: Given information: It is given that the subjects were volunteers who were randomly assigned to the…

Q: For the following research questions indicate the PREDICTOR variable and the OUTCOME variable.…

A: An predictor variable, sometimes called an experimental or independent variable, It is a variable…

Q: 17. An epidemiologic investigation has determined the following relative risk estimates pertaining…

A: Relative risk: It is the ratio of the chance of a certain event happening in one group compared to…

Q: 2. A business francise for tv sets claims that their product possesses an average defect-free life…

A: A business francise for tv sets claims that their product possesses an average defect-free life of 3…

Q: The following data were obtained from an independent-measures research study comparing three…

A:

Q: Identify each of the following designs as being an observational study or an experiment. If the…

A: Observational studies are those where the researcher is trying to observe the scenario for a given…

Q: Consider a scenario where two vaccines have been developed and their effectiveness was tested by…

A: Introduction: Due to lack of further information, assume that the effect size was calculated using…

Q: Suppose that X, Y, and 2 are jointly distributed random variables, that is, they are defined on the…

A: Given that E(X)=-8E(Y)=6E(Z)=-1Var(X)=33Var(Y)=25Var(Z)=48

Q: A manufacturer produces both a deluxe and a standard model of an automatic sander designed for home…

A: Given information- Confidence = 95% α = 0.05 Hypothesis testing, 1) Since Sample size n < 30…

Q: Identify which of the following studies should be tested using two-way ANOVA, bivariate correlation,…

A: Introduction: It is required to identify the studies for which two-way ANOVA, bivariate correlation,…

Q: 5.4 Cardiovascular disease in adolescents. Research published in the American Journal of Human…

A: It is given that multiple regression is used to investigate the risk factor for cardiovascular…

Q: 4.16 Age at first marriage, Part I: The National Survey of Family Growth conducted by the Centers…

A: Given Information: Sample size n=5534 Sample mean x¯=23.3 Population standard deviation σ=4.7

Q: What are the hypotheses? Ho: Ha is - Select your answer - H: Ha is - Select your answer - Compute d…

A:

Q: 1. Dental disease in domestic cats is commonly associated with the accumulation of plaque on the…

A: The mean of the population is 59 and the standard deviation is 20. The distribution is bimodal.

Q: The issue/scenario: A bio-tech firm has provided you with 1 years’ worth of sales for a sample of 45…

A: From the given information, there are two groups in Engineer category, 'No' and 'Yes'. The…

Q: EI Global Entrepreneurship Monitor (GEM) es un estudio académico internacional sobre el estado de la…

A:

Q: 3. Clearly distinguish between curve fitting and correlation b. Explain the step by step…

A: As per the honor code, the first three subparts will be solved. Dear student, please repost the…

Q: A researcher is interested in exploring the relationship between calcium intake and weight loss. Two…

A: n1=n2=28 X1-bar=15.2 X2-bar=12.3 S1=2.5 S2=1.9

Q: A Hong Kong university student with a GPA of 3.3 commenced a job with a starting salary of $16,353.…

A: Solution

Q: A proposed new diet for beef cattle is less expensive than the standard diet. A comparative study…

A:

Q: A statistical program is recommended. Jensen Tire & Auto is in the process of deciding whether to…

A: Given data: Weekly usage Annual maintenance expense 13 17 10 22 20 30 28 37 32 47 17…

Q: Question 2 Comparison of effectiveness on three different advertisement methods on car selling among…

A:

Q: Martha's Vineyard Marine Supply is a wholesaler for a large variety of boating and fishing…

A: First we enter the given data set in excel sheet.  Material handling department costs depend on the…

Q: As part of her report on the durability of Honda sedans, a researcher for Consumer Reports records a…

A: we have to find correct answer..

Q: In part 3. A study was done on two groups of individuals with poor eyesight. Group 1 was placed on a…

A: Linear Regression: It is a model with one dependent variable with one independent variable to…

Q: Is this coefficient estimatimate on FemaleStudent statistically significant at the 1% level?…

A: The regression equation is : y= ax +by +cxy Student performance=-0.50Female professor-0.15Female…

Q: Consider a scenario where two vaccines have been developed and their effectiveness was tested by…

A: Given:

Q: 8.49 Social interaction of mental patients. The Community Mental Health Journal (Aug. 2000)…

A:

Q: Belsky, Weinrub, Owen and Kelly (2001) reported on the effects of preschool child care on the…

A: It is given that Sample size n = 16 Sample mean = 42.7 Sample SD = 6 Level of significance = 0.01

Q: 2. In studying the effect of a drug for treating patients with respiratory problems, a researcher…

A: The Following data is given:   Respiratory Test 2   3.4   3.4   3.3   3.4   3.3   3.3…

Q: A study of obesity and metabolic syndrome used data collected from 15 students, and included…

A: There is a high correlation between BMI and WEIGHT i.e. 0.964. It means that these two variables are…

Q: 18. The investigation has also determined the following relative risk estimates pertaining to eating…

A: Given data is Effect of drinking without regard to eating pizza  effect of drinking among those…

Q: Given the descriptive statistics below about the fasting blood sugar level(FBS) for all the patients…

A: Solution: From the given information, the mean is 120 mg/dl, Standard deviation is 10 mg/dl, First…

Q: Below are several research scenarios. Indicate which set of statistical analyses (e.g., ANOVA,…

A: a) Here, we have three groups and we have see if the difference in this groups is significant and…

Bar Graphs

A bar graph is a chart or graphical representation of data. A bar chart, also known as a bar graph, is a graph or chart that displays categorical data using rectangular bars with heights or lengths equal to the values they represent. Typically, bar graphs show categorical and numerical variables grouped in class intervals. A bar graph is useful for comparing and analyzing a set of data.