2. An analyst wished to gauge the contrast between the extent of clients of two

shampoos who are happy with the prodcut. In an example of 400 clients of Shampoo A

taken by this specialist, 78 said they are satisifed. In another example of 500 clients of

Cleanser B taken by a similar analyst, 92 said they were fulfilled.

a) Construct a 90% certainty stretch for the genuine distinction between the two populace

extents.

b) Based on your answer in (a), what might be your reaction at "=0.1 to the case that

there is no distinction in consumer loyalty between the two shampoos?

3. An overview as of late announced that the mean public yearly consumption for inpatient and

outpatient administrations of all people more than 64 years old was $5,423 with a norm

deviation of $979. An irregular example of 352 people over age 64 living in Sudbury had an

normal cost of $5,516.

a) Can we presume that the mean inpatient and outpatient cost of all Sudbury

inhabitants over age 64 is higher than the public normal of $5,423? Utilize the .01

level of importance.

b) Calculate the P-an incentive for this test. Would your answer have changed on the off chance that you had utilized a

.05 degree of importance?

5) The figure shows electric field lines arising from two small charged particles P and Q. Consider the following two statements: (i) The charge on P is smaller than the charge on Q. (ii) The electrostatic force on P is smaller than the force on Q. Which of the above statements are true? A) Only (i) is true. B) Only (ii) is true. C) Both (i) and (ii) are true. D) Neither (i) nor (ii) is true. 6) Gaussian surfaces A and B enclose the same positive charge +Q. The area of Gaussian surface A is three times larger than that of Gaussian surface B. The electric flux through Gaussian surface A is A) three times smaller than the flux of electric field through Gaussian surface B. B) unrelated to the flux of electric field through Gaussian surface B. C) nine times larger than the flux of electric field through Gaussian surface B. D) three times larger than the flux of electric field through Gaussian surface B. E) equal to the flux of electric field through Gaussian surface B. 7) A solid aluminum cube rests on a wooden table in a region where a uniform external electric field is directed straight upward. What can we say concerning the charge on the top surface of the cube? A) The top surface is neutral. B) The top surface is charged positively. C) The top surface is charged negatively. D) The top surface's charge cannot be determined without further information.2. In the drawing below there are three point charges in four (partially overlapping) Gaussian surfaces (labelled a, b, c, d). a) Which Gaussian surfaces (if any) have zero net electric flux? b) Which Gaussian surfaces (if any) have net electric flux +q/co? a + 9 29 + 9. b CQuestion 15 1 pts The figure shows a cubical Gaussian Surface; at the center of the cube is a point charge (the circle) with charge 189. What could explain the flux through BOTTOM face of the Gaussian Surface being 2q,/Eg? TOP BOTTOM An unshown positive charge located above the TOP face of the Gaussian Surface. An unshown negative charge located below the BOTTOM face of the Gaussian Surface. None of the other answers can explain this situation. An unshown positive charge located below the BOTTOM face of the Gaussian Surface. O An unshown positive charge located within the Gaussian Surface.A Gaussian (closed) surface is drawn around a region of space. There are 25 field lines leaving the Gaussian surface, and 35 field lines entering the Gaussian surface. True or False: The region of space inside the Gaussian surface must contain some positive charge. True False