The diameter of steel rods manufactured on two different extrusion machines is being investigated. The sample means are 8.69 cm and 8.51 cm and sample variances are 0.30 and 0.44, respectively from Machine 1 and Machine 2. If it is given that the population variances are not equal for both machines. Meanwhile the sample size for Machine 1 has been changed from 15 to 10. Construct the new confidence interval for difference between means diameter of steel rods manufactured by Machine 1 and Machine 2 at 95% level of significant.

Q: now please answer d and e

A:

Q: could you type the answer out

A: Find the velocity and acceleration vectors in terms of  and   and  where  is costant. We know that…

Q: Answer number 10

A: Given that:  Total students = 100 , Math studied = 54 ,  History studied = 69 , Studied both math…

Q: VA? +3 +3dx

A:

Q: The answer is incorrect.Please write it again

A: The general equation of conic is  Circle if Parabola if but not both equal to 0Ellipse if  and are…

Q: please answer 1.2

A: The given integral is:                          I=∫C1z2dz where C is the circle z=3.

Q: c) In which unit direction does the graph of z=f(x, y) have its steepest decline at the point (2,3),…

A:

Q: In a parallelogram ABCD, |AB|= 12,|AC = 14. The distance from D to AC is 4. Find the distance from D…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: Answer number 9

A: Data given  9 balls =5(Red)+4(green) balls  Two balls selected

Q: Please answer the top one

A: Given, test statistic =-1.603 n=5 degree of freedom =n-1=5-1=4

Q: Pls help ASAP on all asked questions.

A: Step 1:

Q: Just read the image and answer

A:

Q: Pls help ASAP on all asked questions.

A: Step 1:

Q: 2 30 5 2

A: We have to find side and angle

Q: Wilbur landed his plane,

A: In this case, the given information is that Wilbur landed his plane. There are no numerical values…