a)Use Excel to calculate the correlation coefficient r. If you have issues copying the table intoIt is well known that similarity in attitudes, beliefs and interests plays anExcel, try right clicking, selecting "paste special" and then "text".important role in interpersonal attraction. A researcher developed aquestionnaire which was completed by 8 married couples. One questionDo not round your answer.0.820485871sought to place each individual on a 20 point scale in which low scoresrepresent liberal attitudes and high scores represent conservative attitudes.The data were:CoupleA BCEFH.Wife (X)Husband (Y) 20 1818 1110 13 6 3 44 14 2 1 8 9In this exercise you will find the Pearson correlation coefficent for the abovepaired data and comment on the significance of the calculated correlation.b)Using the t-table from Barrow, enter the relevent critical values for tests with the followingThe null hypothesis you are testing is:significance levels.Ho: There is no association between the attitudes of wives and husbands.10%5%1%0.2%What is the test statistic? Round your answer to three decimal places.

Critical values for given significance level, 1) For 10% - 0.621 2) For 5% - 0.707 3) For 1% -…

Answered: a) Use Excel to calculate the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A pediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects eleven 3-year-old children from her practice and measures their heights and head circumference. According to the data, the linear correlation coefficient between the height and head circumference of a child is 0.918. Compute the coefficient of determination, R². A. 91.8% O B. 84.3% OC. 82.6% O D. 8.2%
In a study examining the relation of math ability to the belief that math ability was innate, the belief was considered the predictor variable. The researcher hopes to find a correlation between the participants’ math ability and their belief that math ability is innate. The scores for the three participants are shown below. The group that believed that math is NOT innate scored 66, 70, 50. The group that believed that math IS innate scored 7, 4,10. what are the mean and SD for each group?
A study was done asking people how much money they spend per month on their natural gas bill and how much money per month they spend on their electric bill. The correlation r was found to be 0.94 and the p- value for correlation was 0.0003. Then a person with a high natural gas bill will also have a high electric bill. O true false
You are a data analyst for the MLB and your boss asks you to analyze data related to stadium attendance and winning percentage. You obtain data on 30 MLB teams (see the data file for this project; this data is from the early 2000’s, so the teams might not reflect the current state). The file includes the cost of the team name, league, year the park was built, stadium capacity, average attendance, and winning percentage. You decide to calculate the correlation coefficient to see if the winning percentage and average attendance are related, and then the least squares regression line, in order to predict the winning percentage of a team whose average attendance is 65000. What to do: Prepare your summary of results, and make sure you include (1) the correlation and (2) an equation for predicting the winning percentage based on average attendance. What is (3) the expected winning percentage of a team whose average attendance is 65000? Does this seem reasonable?
use the sample data to construct a scatterplot. Use the first variable for the x-axis. Based on the scatterplot, what do you conclude about a linear correlation? FORECAST AND ACTUAL TEMPERATURES The table lists actual high temperatures and the high temperatures that were previously forecasted for these same days. The table includes data for ten different days near the author’s home. What does the result suggest about the accuracy of five-day predicted high temperatures?
2. Step 3.2 Instructions: Please answer these a.b.c questions. Dont use excel. Please explain well by your knowledge.
please answer blank questions only and or ones with a red x next to them.
A researcher found the correlation between math ability and math anxiety is -0.6. Which of the following is NOT correct? The people who have lower math ability tend to have higher math anxiety. The people who have higher math ability tend to have lower math anxiety. Student A has high math anxiety is because she/he has a low math ability
A newspaper collected information on schools in its circulation area in order to compare their quality. Two Which is a true statement regarding Springside? measures the newspaper collected for each school, O Springside does not affect the correlation. mean class size and mean score on a statewide O Springside weakens the correlation shown in the scatterplot. reading exam, are shown in the scatterplot. One school in the report, Springside Elementary, is labeled in the graph. O Springside strengthens the correlation shown in the scatterplot. O Removing Springside would increase the value of the correlation coefficient. Comparing Schools 90 Springside 70 60 50 40 Save and Exit Next Submit Mark this and return ContentViewers/AssessmentViewer/Activity# ch hp Mean State Test Score
This question has 6 parts, Thank you.
Statistics Question
Please Answer Questions A through C. Correlation table is provided.

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