You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o = 39.4 dollars. You would like to be 95% confident that your estimate is within 2 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? Hint: Video 2 [+] n =

Q: 国 7.

A: Solve for a

Q: 4s +5 S -4

A:

Q: a. Which of the error bars indicates the standard deviation? b. Which error bar indicates the…

A: Disclaimer: As the question has multiple parts, only first three will be answered.   The easiest and…

Q: Evaluate Vi

A:

Q: 24 12 XD

A:

Q: What is the Probability that a student is not taking either class?

A: From the given Venn diagram, it is observed that the number of students who are taking art only is…

Q: 3 3 x-5 1 322

A:

Q: -7.4v+2.4(-7.1v+-10)+6.7

A: simplified value is -24.44 v - 17.3

Q: Combination C.  (87,1)

A: Given:              C87, 1 The number of k-combinations from a given set S of n elements can be…

Q: 8+ 6 10. 9-2

A: This question is related to addition, subtraction and devision of numbers, we will solve it using…

Q: 23-8K

A:

Q: expand (a-b)7

A: The solution is given in the next step.

Q: blogs x

A: We have to find the value of blogbx.

Q: 1+7/7 + 8

A: Answar would be 10

Q: 4root2*4root2

A:

Q: sing the geometry of the graph ,evalvate the definite integrals.

A: As this is a multiple subpart question according to the Bartleby Answering rule, only first three…

Q: 10* 10 + c

A:

Q: 216 5 5 6

A: B) It is a long division method used to divide.

Q: 3. Identify all the cycles at each node of the directed graph above.

A: Cycle is defined as a path that start and end at the same vertex.

Q: Evaluate (33)2

A: Given: 332Power rule amn=am×nSolution:332=33×2=36(33)2=729

Q: 5 23 4 48 1 5 75

A: Given       5  2 3 − 4 4 8¯      1  5 7 5

Q: 4. Fill in the following contingency table with the number of observations that fall into each com-…

A: x1 = number of colored oranges from Skittles brand = 77 x2 = number of colored oranges from M &…

Q: h each scatterplot shown below with one of the four specified correlations. O 8 9 a. -0.02 b. 0.66…

A: From the above scatter plot From First scatter plot  The value of correlation coefficient is  -0. 85…

Q: 25-n=11

A:

Q: 75%1

A:

Q: finf the

A:

Q: 6. Using the data from the contingency table, obtain the value of the test statistic of our test. 7.…

A: Step 1: Given: x1 = number of colored oranges from Skittles brand = 77 x2 = number of colored…

Q: O V-100 -125 3. 3-125

A:

Q: 8-8.2+5.0

A:

Q: 3 7,542

A: We have to perform the division.

Q: N 11 9

A: Here given that N/9=11

Q: 9.2 q 10

A: We use  Sin(a+b) = sin(a)cos(b) + cos(a) sin(b)  Pythagoras theorem (Hypotenuse)2 =…

Cylinders

A cylinder is a three-dimensional solid shape with two parallel and congruent circular bases, joined by a curved surface at a fixed distance. A cylinder has an infinite curvilinear surface.

Cones

A cone is a three-dimensional solid shape having a flat base and a pointed edge at the top. The flat base of the cone tapers smoothly to form the pointed edge known as the apex. The flat base of the cone can either be circular or elliptical. A cone is drawn by joining the apex to all points on the base, using segments, lines, or half-lines, provided that the apex and the base both are in different planes.