The data table below shows the total hours studied over 2 weeks and test scores at the end of the 2 weeksfor a calculus course. Find a 90% confidence interval for the slope of the population regression line thatrelates the response variable to the predictor variable.Time, x18Score, y91Ex=88, x² = 1,278, b₁ = -0.13, and se = 6.58528835841090The 90% confidence interval for B₁ is from to(Round to three decimal places as needed.)148820761394y = 88.2-0.13x

We have given, n=7, ∑xi=88, ∑ xi2=1278, b1=-0.13 and se=6.5852 The confidence level is c=0.90.

Answered: The data table below shows the total…

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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18
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How are linear correlation tests and t-tests similar?
The table below gives the list price and the number of bids received for five randomly selected items sold through online auctions. Using this data, consider the equation of the regression line, yˆ=b0+b1x, for predicting the number of bids an item will receive based on the list price. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression line to make a prediction if the correlation coefficient is not statistically significant. Price in Dollars 20 30 35 42 49 Number of Bids 3 4 5 6 9

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