Internet Viewing A researcher wishes to estimate the average number of minutes per day a person spends on the Internet. How arge a sample must she select if she wishes to be 99% confident that the population mean is within 13 minutes of the sample mean? Assume the population standard deviation is 48 minutes. Round your final answer up to the next whole number. +/ The researcher needs

Q: 7.2-9

A: Solution: The percentage of body fat measured at the beginning of the semester and at the end of the…

Q: 3.3 31 3 O 3 O 3평 37

A:

Q: 4 3- 1 -6 -5 -4 -3 -2 2 3 4 6. 2 -3 4 2. 3.

A:

Q: 4. If we randomly pull a number from B, what is the probability that it is also an element of A? P…

A:

Q: 10

A: To simplify 35+710.

Q: dx 0 4-x

A: To evaluate the integration.

Q: 5.1 #7

A: Given that                  A=60-1054-403-3502-425, λ=5

Q: 1o.e 4.60

A: trigonometry rule

Q: 2. 6. 1.

A:

Q: 25. 1 | 1 1 + 1 - 1

A: Solution is done in step 2

Q: 10.0

A:

Q: Given the information below, estimate the total distance travelled during these 6 seconds using a…

A: We need to perform left endpoint approximation.

Q: d) | 4f(x)| dæ =

A:

Q: 4.5-10

A: Introduction: Suppose X and Y follow the bivariate normal distribution with mean and variance of X…

Q: 1.6+0.4(x+6)+3.2

A: To simplify the expression means writing it in the simplest form.

Q: Find the value of x.

A: This can be solved using geometry and trigonometry rule.

Q: 6.1 10

A:

Q: %3D 6.

A: Please see the explanation below

Q: 6. 5

A:

Q: 3,

A: Use 2 chords power theorem

Q: 29 14

A: It's trigonometric question so I'm providing hand written solution for better understanding.

Q: 5.0 5.2n=1 no.2

A: The series ∑n=1∞1n0.2. We have to check whether it is convergent or divergent.

Q: 1.r -5 1.Г 2

A:

Q: 10. 6. 3.

A: we have to find the radius of circle from the given figure

Q: 8. 2 k=1 3k

A:

Q: 60 6 30 V3/2

A: Topic:- trigonometry ratios

Q: 7.2-2

A: Given:   x y 644 623 493 472 532 492 462 661 565 540   502   549   518

Q: Find the circumference of each circle. Leave your answer in terms of T.

A: From the image of the circle, we see that the radius=r=3.9 units

Q: 4. 15 33,

A:

Q: 2.73-0.94

A: Here we subtract a number in another number.

Q: 3 33. 3 .2 3.

A:

Q: 5.1 16

A:

Q: 1. 12

A: We can use the concept of Pythagoras theorem to solve the given problem.

Q: 5.1  5

A:

Q: 21

A: for triangle ADB, use the Pythagorean theorem  AB2=AD2+BD2 x2=42+BD2 x2-42=BD2 x2-16=BD2 BD2=x2-16