A study of 420,010 cell phone users found that 132 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0331% for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. 027 %

Q: 3y² - 2y-1 (-)-5y²- 2y +6

A:

Q: 5(18)

A: To find5(18)

Q: 2) 36³x=¹

A:

Q: expand (a-b)7

A: The solution is given in the next step.

Q: 4root2*4root2

A:

Q: 7,20

A:

Q: +–3m+–9m+4+5+–10m

A: The expression is given as 1+–3m+–9m+4+5+–10m. Simplifying the given expression. 1+–3m+–9m+4+5+–10m…

Q: 4. Expand and simplify (2x + 3)*

A: We have to expand and simplify the following expression: . We will apply the binomial theorem to…

Q: Expand (a −b)4

A:

Q: d. 1 3a+18 = 1 - 8 a+6

A:

Q: limx→- f(x) limo+ f(x) limx→ = = =

A:

Q: 12 16

A: We know that If a perpendicular is drawn from the vertex of right angle triangle of a right triangle…

Q: 18(9+7)+3

A: 18(9+7)+3

Q: 14 1

A: Given triangle is What is another side length?

Q: expand (x+y)6

A:

Q: limx→2 f(x) = lim, ¹x→−1+ f(x) =

A: Given graph of the function fx is   1. Find :  limx→2 fx. 2. Find :limx→-1+ fx.