Have you ever noticed that when you tear a fingernail, it tends to tear to the side and not down into the finger? A possible reason for this might be that fingernails are tougher in one direction than another. To test this theory Farren et al. (2004) compared the toughness of human fingernails along a transverse dimension (side to side) with the toughness along a longitudinal direction, with 3 measurements of each. The toughness of fingernails along a transverse direction averaged 3.3 kj/m?, with a standard deviation of 0.99, while the mean toughness along the longitudinal direction was 6.2kJ/m2, with a standard deviation of 2.24. Assume that the data are from two independent samples of 3 people What is the standard error of the difference (SEy, - Y) in the toughness of these fingernails along the two dimensions? (calculate your answer to three decimal places)

Q: do you have the rest of the answers

A: Solution: Given information: n= 8 Sample size x= 6.68 psi Sample mean s=0.75 psi  Sample standard…

Q: Find the value of X, If 4 +6 qu hit

A:

Q: 1. A crucial part of managing the spread of Covid-19 is testing people to see if they are infected…

A: a. The average infection rate can be calculated by dividing the confirmed cases of COVID-19…

Q: Please write the solution...

A:

Q: Solve. Vx +6+5=2

A:

Q: Find the numbers. One positive number exceeds another by 4, and their product is 60.

A:

Q: . Solve exactly: ex-4 = 6

A: Solve exactly: ex-4 = 6

Q: Solve. P - 4, for A A W = A =

A: We have to find the value of A

Q: Solve for b. * 13 12 18 24 of

A:

Q: PLEASE FOLLOW INSTRUCTIONS I SENT AS A FOLLOW UP AND SOLVE ON PAPER

A:

Q: Solve.  3x2+5x-2=0

A:

Q: This is a homework question and I am want to make sure I am addressing this correctly. 1st that this…

A: Null hypothesis : There is no difference in the productivity of workers from and workers in an…

Q: I need answer for the second question pl

A: s = 10 old reliability = probability of passing = 0.66 The confidence Interval is given as: CI =…

Q: Let X be the discrete random variable with the probability function f (x) = kx³ + 0.15 %3D for x =…

A:

Q: Solve. x= x+3 6 x-3 7 = -8

A:

Q: Leª dx

A: We have to find the integral

Q: Can you solve letter D from the posted question?

A:

Q: What is the value of

A: We know, i=-1

Q: Solve. (a-4)(a+7)=0

A: We need to solve the equation (a−4)(a+7)=0

Q: find the value o x 3x-5=0

A: As given question Find value of x     GIVEN 3x-5 = 0 Add 5 on both sides 3x-5+5= 5 3x =5  Devide 3…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.