Pretzels: In order to judge the effectiveness of an advertising campaign for a certain brand of pretzel, a company obtained a simple random sample of 98 convenience store receipts the week before the ad campaign began, and found that 26 of them showed a purchase of the pretzels. Another simple random sample of 78 receipts was taken the week after the ad campaign, and 41 of them showed a pretzel purchase. Part: 0/ 2 Part 1 of 2 (a) Construct a 99.5% confidence interval for the difference between the proportions of customers purchasing pretzels before and after (se ad campaign. Let p, denote the proportion of customers purchasing pretzels before the ad campaign and let p, denote the proportion of customers purchasing pretzels after the ad campaign. Use the TI-84 Plus calculator and round the answers to three decimal places. A 99.5% confidence interval for the difference between the proportion of customers purchasing pretzels before and after the ad campaign is W

Q: Find 2x² +5x+1 -dr, x>0

A: Use the formulas below to evaluate the given integral.

Q: (1,-16) and (-3,12)

A: To write down the equation of the straight line joining the two given points.

Q: Solve on y

A: Given, 5(x - 2) > 9x - 3(2x - 4)                5x - 10 > 9x - 6x +12                5x -10…

Q: Solve for x in -1-4 30 XT. = -10 X = = -2-54 1 -2 XT. 2-4-4 -24

A: Given the matrix equation:[−13​−40​]XT=−10[−22​−5−4​4−4​]+[1−2​−24​]XT Let's denote the left-hand…

Q: Solve for A.

A: This means that the product of matrix A with another matrix given an identity matrix. Therefore the…

Q: Solve for x. 2x - 2, x +5

A:

Q: 2. A study found that 11 out of 44 randomly selected adults said they agree that toddlers should not…

A: Given data is appropriate for testing of hypothesis to test z-test for single mean because it is a…

Q: |2х +3 3 13

A:

Q: solve for b a=1\2bh

A: We will find the value of b in terms of a and h as following .

Q: 16 a

A: topic - similar triangles

Q: Solve for x. (3x + 2)* 62 O x-20 O x-38.7 O x-21.3 O x-62

A:

Q: Find the value of the determinant. |-2 -4 -4 3 -1 -2 2 2-5

A:

Q: Solve for VW

A: Use the Pythagoras theorem as there is a right-angled triangle present in the circle, use the…

Q: Solve for x. 2x+29 3x+8

A: Both the angle with x variable makes a supplementary angle.i.e (180°).

Q: Solve number 2

A:

Q: If 2*+l = 3-* then find the value of x

A:

Q: olve accordingly

A: we can see that the graph touches at 4 places on the x-axis.

Q: z+3 + 27 f(2) = To graph y = f(z) how should we transform the graph of y = Domain Range

A: As you have posted questions containing more than 3 sub parts .I am solving first 3 sub parts .Re…

Q: 3. 3r+ Sy - 2: = 52 4r+ 7y +a= SI -2r- 9y + Sa--53

A:

Q: For 1>0, y 2 0, a > 0, a ± 1, and any real number r, Product Property: loga(ry) = loga(x) + loga(y)…

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.