In a 2013 poll, it was found that 0.78 of Americans cover their mouth when sneezing. A sociologist claims that this proportion has decreased since then. She wishes to test the following claim (H1) at a significance level of a 0.10. Ho: p = 0.78 H₁: p<0.78 She obtains a random sample of 21 Americans and finds that 13 cover their mouth when sneezing. The p-value for this test is the probability of observing... at most 13 Americans cover their mouth when sneezing. O at least 13 Americans cover their mouth when sneezing. What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) a esc K 1 2 7 C $ 54 #3 e a W e S 925 % 言 ווב 6 & 7 d g y

Q: A catapult is an ancient throwing weapon where a boulder is tossed onto enemies in another…

A: Given function, c(t)=-16t2+95t+20 where c(t) is the height in feet above the ground. t is the time…

Q: For what integer of x does the graphs of the two equation intersect

A:

Q: 3. Determine the equation of the cubic function with roots 2, 3+√√3 with y intercept 2.

A: Zeros are y intercept is 2

Q: What restrictions must be placed on y in this problem? x 12

A: C. The core claim of the question is to identify the restrictions that must be placed on y in the…

Q: if mLABD = 84, what are mL ABC and LDBC? D7

A: Given: m∠ABD=84°m∠ABC=7x-8°m∠DBC=4x+4°

Q: 2 If f(x) = 3x? + 9x and g(x) = x + 3, find f • g(x) . Completely simplify the result

A: to see 2nd step

Q: I am having trouble solving this problem. I believe z= 3.2?

A:

Q: Thank you! Now how do I find P+P from that equation?

A: To find P+P you need to know the coordinates of a point P.As mentioned in the question P+P is…

Q: How many points of inflection does the function (x)=x°+ x have?

A:

Q: graph the following quadratics. find the x-axis, y-int, and vertex y = -(x + 3) (x +

A:

Q: 2. Find values for b and c so that f(x) = 6x² + bx+c has its vertex at (7,-9).

A: As per rule I need to solve only first question.  So I solve only question number 2.

Q: #G) 3x²+ 18x +21 Cofficient of x= 18 %3D f(A)= 3x+18x+21 f0-3(x+6x+7) J don't kraw whan do afrer…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 5. The revenue and operating cost of a car wash facility are given by R(x) = 13x - 0.7x2 and C(x) =…

A: The revenue and operating cost of a car wash facility are given by and where  represents the…

Q: The function C(x)=−9x+2401 represents the cost to produce x items. What is the least number of items…

A: Obtain the average cost function for the given cost function as follows. Cx=Cxx=-9x+2401x=-9+2401x

Q: The graph of 5% = where x > 0, lies entirely to the right of the y-axis O below the x-axis above the…

A: Given: Graph of the above is,

Q: 6) - -2+4メ-5 1 --2 (x-2x)-5 = Coefcientofメー42 FE)--2(x²-2x+4)-5+4 H)= -2 (x-2)-1RIam getting this…

A:

Q: What is the vertex for this equation? f (x) = (x+3)² + 1

A:

Q: this equation is quadrfatic or expendential k(x)=4x+3

A: Consider the equation