A study was made by a retail merchant to determine the relation between weekly advertising expenditures and sales. Sales ($) Advertising cost ($) 40 380 20 410 24 395 18 360 32 480 48 430 38 490 20 410 50 575 40 520 Find the equation of the regression line to predict weekly sales from advertising expenditures. Also test the significance of regression coefficient.

Q: ed 0,

A: The Laplace transform of a function can be obtained by using the Laplace transform table. The…

Q: 2a3 b4

A: Exponent

Q: Find

A: We know that,                         ∫1xdx=lnx+ c We need to find  ∫4xdx

Q: 1. (3, x) 2. (3x + 3, y) 3. (y, cos x) 4. (x + y, x – Y)

A: using online vector field graphing we get 1-A 2-C

Q: 7=-2 +3b

A: b = 3

Q: 3 + 8

A:

Q: 3e

A: Since you have asked multiple question,as per our guidelines we are supposed to answer only one…

Q: w2=-8w-19

A: Add 8w and 19

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.