sholds were selected and asked if they had purchased tuna in the last month An ad campaign was then run promoting the healthy benefits of tuna A second simple random sample of 57 households were selected and asked if they had purchased tuna in the last month. The results from each sample are listed below. Construct the 95% confdence estimate of the difference in the proportion of households who purchased tuna before and after the ad campaign The number of households purchasing tuna before and after an add campaign (42/33, 57/45) Sample Size 42 57 Number of Households that Purchased Tuna Before Add Campaign 33 45 After Add Campaign "Let the first population be the "after" results and the second population be the before results" The right hand critical value is Round to 2 decimal places The error is Round to 4 decimal places The mean difference proportion of households purchasing tuna after and before the ad campaign is between Round to 3 decimal places and Question 6 Does the ad campaign appear to have increased sales? Explain using statistics. Make sure to include the conidence level in your answer. Lo View Insert Format Toos Table

Q: 国 7.

A: Solve for a

Q: 54 22

A: Given figure,

Q: 24 25

A: The base of the triangle is 24. The hypotenuse of the triangle is 25. The triangle is right angled…

Q: 24 12 XD

A:

Q: 12 I+(-1'] = i=1

A:

Q: 63 45 56 48

A:

Q: 33/29 b.

A:

Q: 30 45

A: To find the length of the hypotenuse and adjacent sides of a triangle.

Q: x)

A:

Q: 40 X

A:

Q: (c) How large would the sample need to be so that a 95% confidence interval would have a margin of…

A: Given that sample mean xbar=12.05 and population standard deviation=6.55 3) find sample size of…

Q: 20 14 16

A:

Q: 36 14

A:

Q: 13

A:

Q: 1805

A:

Q: 62 28

A: A circle is given below as shown We have to find x°

Q: 40 10

A:

Q: 16 I 25 3/5

A:

Q: 28 47

A:

Q: 56 10

A: The objective is to evaluate the value for

Q: 1.3 2 457 1 Evaluate @4 248

A:

Q: 38 10

A:

Q: 44° H. 30

A: It is problem of secant line at circle.

Q: 72 44

A: Given: In the right-angle triangle, assume that the missing angle is y So we know that the addition…

Q: 3. Select the equivalent expression. * OA. 1 8-22 O B. 26 89 o20 Tr

A: use the property of exponents

Q: 60 6 30 V3/2

A: Topic:- trigonometry ratios

Q: Sy 121

A: Given,         25y2 = 121

Q: 15 39

A:

Q: 321.123

A: Answer

Q: part c pls

A: C) Given that r(u,v)=(u cos v, u sin v, v) with 1,2×0,2π I(x,y,z)=(0,0,x2+y2+z2) Here x=u cos v, y=…

Q: 39. 2

A: according to given figure given function is decreasing in it's domain

Q: 38 20cm

A:

Q: 57° 48 33

A: