A teacher wants to determine which factors can significantly predict academic performance in mathematics of a group of learners.   Which among the three factors: prior knowledge, mind set, math anxiety can predict a group of students’ academic performance in mathematics?

Q: Which value is greater than at most 75% of all scores in a data set?

A: The median is middle value of the observations, above or below which 50% of the observations lie.

Q: 3. How was the data collected?

A: Data collection is an important part because the whole analysis will depend upon the collected data.…

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Q: Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke…

A: It is given that both sample sizes are 200, number of strokes for aspirin alone is 60 and number of…

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A: Given that, A data value that is 2IQR below the first quartile. This value is removed from further…

Q: Lecture(12.13): Researchers were investigating anxiety in first year college students.According to…

A: Given information:   Going for a walk/ doing physical activity    Listening to music/ watching a…

Q: 155 169.3 175.9 183.5 minimum height is cm, the first quartile Q₁ is integers or decimals. Do not…

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Q: 44 överweight Is a weight loss program based on exercise just as effective as a program based on…

A: Since you have posted a question with multiple subparts, we will solve the first three complete…

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Q: Would a sophomore year statistics class students’ average age be a good Point Estimator(This is a…

A: Yes, as usually students in sophomore year are of certain age and the age range is not so huge,…

Q: Based picture, explain respondent's profile. b. Based picture, explain descriptive analysis for…

A: In the given situation, There are four variables. Product Quality Product Price Product Promotion…

Q: If the t-statistic for a variable is -1.74, is the variable statistically significant?   No   Yes

A: If the t-statistic for a variable is -1.74, is the variable statistically significant? Explanation:…

Q: One of the biggest factors in determining the value of a home is the square footage. The…

A: The data shows the square footage and selling price for a random sample of homes for sales in a…

Q: Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke…

A: Given ,  Aspirin alone :  Sample size = n1 = 200  Number of strokes = x1= 60 Sample proportion = p^1…

Q: A researcher is exploring the relationship of academic performance of students in an online class to…

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Q: Do various occupational groups differ in their diets? A British study of this question compared 98…

A: Introduction The sample mean is denoted by x¯ and the sample sd is denoted by s.

Q: in a study of the relationship between personality and humor appreciation, Mobbs et al. (2005)…

A: Note : Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…

Q: Is there a significant relationship between academic ability and achievement in Mathematics of Grade…

A: Given n=10 Academic ability  Achievement in math 130 18 125 22 115 16 108 17 104 14…

Q: The boxplot shown below results from the heights (cm) of males listed in a data set. What do the…

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Q: How are the smoking habits of students related to their parents’ smoking habits? Here are the data…

A: H0 : There is no association between parent smoking and student smoking H1 : There is an association…

Q: 9. In a study of the relationship between health risk and income, a large group of peopleliving in…

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Q: 2.What does a x score of - 1 for a data value x represent

A: Given: z-score=-1

Q: A data collection method is described to investigate a difference in means. Determine which data…

A: In this case, it is needed to test whether the color red increases how attractive men find women.

Q: 1. What does it mean to "Clean the Data?" 2. Why do you think cleaning data is important? EXPLAIN…

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

Q: Does the attendance in nursery school relate to the thinking skills of a pupil? Assume that 12…

A: Suppose we want to test whether two independent samples xi, (i=1,2,...,n1) and yj, (j=1,2,...,n2) of…

Q: Thanks. Why is Kathy's score considered better-is it because it is a posituve score? What does the Z…

A: Bobby' Z- score ( wasZ=Bobby's score  of 1080 was between 1 and 2 standard deviation above the mean…

Q: 2. An investigator is interested in predicting scores for a measure of cognitive function from the…

A: The coefficient of correlation is, rXY=Cov(X,Y)σXσY=1n∑XY-X¯ Y¯1n∑X2-X¯21n∑Y2-Y¯2where X¯=∑i=1nXin…

Q: Suppose you have collected data on 1000 customers who visited your company's website last week. For…

A: A response variable is a final variable that is observed to form conclusions. The explanatory…

Q: Suppose the observational units in a study are the patients arriving at an emergency room on a given…

A: The observational units in the study are the patients arriving at an emergency room on a given day.

Q: 1. Measure of central tendency refers to the “center/ average of the data”. Which among the 3…

A: The three measures of central tendency are Mean, Median, and Mode. All are important in their own…

Q: Suppose a researcher wants to test if the average diastolic blood pressure in African-Americans is…

A: Given data: Rhe average diastolic blood pressure in the general population is 70 mmHG. To find : The…

Q: Look at the Table, specifically the information related to "stroke severity." What is the dependent…

A: The dependent variable is a variable that changes depending on the value of another variable.  The…

Q: 4. time to try out multiple predictor variables. take a look at the data shown here, where the…

A: A multiple linear regression using the given data.First, let's assign variables to the predictors…