Question

Alison runs her own YouTube channel, and she wants to use giveaway to increase the number of her subscribers. But she wants to determine the appropriate amount of money to spend Q12 on the giveaway to increase her subscriber count by 1,0000. She collected data on the value of giveaways and the number of new subscribers during each giveaway from 102 YouTubers. Summary statistics for the bivariate data for the 102 YouTubers are below. Figure out which variable is X and which variable is Y, and choose a statistical method to predict the appropriate cost of the giveaway for Alison. Mean of New Subscribers: 800 Mean of Giveaway Values: 100 Sum of (X;- X)²: 200 Sum of (Y,- Y)²: 500 Sum of (X; - X )(Y, – Y ): 300

Q2 What is the correlation coefficient between the two variables? A. 0.81 B. 0.95 C. 0.93 D. 0.90

Q3 What is the percentage of the variance in the number of new subscribers that can be explained by the giveaway? A. 0.77 B. 0.81 C. 0.90 D. 0.95

Q4 What is the sum of squares in the DV that the IV can explain? A. 450 B. 300 C. 250 D. 50

Q5 What is the sum of squares in the DV that the IV can NOT explain? A. 450 В. З0 C. 250 D. 50

Can someone please help me with this question

Answer 1

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