Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be overturned only if there is evidence against it. Which of the statements below might represent a null hypothesis? The ad campaign did not change sales. O The treatment increased survival rates. O The teaching method raises SAT scores.

Q: solve 3x-5/x+2 ≤2 algebraically

A: Now,  We will find the solution.

Q: Simplify x²+1 +1 1 1 1 1+ אן X x + X In the least amount of steps please

A: Step 1: Simplify the denominators in the fractions within the numeratorThe terms inside the…

Q: { 2z + y = 4 Ty = dz +1 9.

A: Since you have asked multiple questions in single request,  So we will be answering only first…

Q: Lim. Zan² (4x) X² it: to x 70

A: Let,the given limit is

Q: 12. Use the information to answer the following question. (x*) What is the value of the question…

A:

Q: A telephone company is asked to provide cable service to a customer whose house is located a = 4 km…

A: The double derivative test is used to optimize (maximize or minimize) a function. For a right angled…

Q: I cant see the full explanation that was wriiten for "can you please annotate this and show all…

A:

Q: Suppose you compute a one-sample t test to investigate a directional hypothesis at an alpha level of…

A: Given that: A one-sample t test was conducted to investigate a directional hypothesis (one-tailed…

Q: How can you show mathmatically that they are equal?

A:

Q: Can you please elaborate on part b? I am having trouble understanding the solution

A: Confusion comes when you view f as a function, instead read the statement replacing f by "c"

Q: Camila sets up a passcode on her tablet, which allows only five-digit codes. She hasheard that it's…

A: According to the provided data, the passcode allows only five digit codes. The passcode is more…

Q: how to calculate the following problem  5(-7) – 2 (-4) + 6(-3)

A: Please see the attached image for the solution.In adding numbers of the same sign, just add the…

Q: 3. Solve for x. a. 3 b. 8-x x + 2 X x +4 1 x+1 = 1

A:

Q: Which of the following words or phrases would indicate that an inequality should be used to model a…

A: "At least" means "more than that or the same" means "greater than or equal to". Hence "at least" is…

Q: can you explain part (c) in more clear/ simple steps? thank you

A: Consider the ,bnpolynomial m(x) = x-3 in R[x]. We claim that the set \ f in R[x] / f * (2) = 3 \ is…

Q: Evaluate: [8zº · sec² (25) dx =

A:

Q: Sorry about that. Here is question 2 of the same worksheet.

A:

Q: can you help me find x for these 4 problems 22=18x+4 25+8x=1 X/5+4=6 5/2+X/2=4

A: X= 1X= -3X= 10X=…

Q: for part b of the question, how did we get 2 answers after isolating for x?

A: Since the sinusoidal function is periodic , we get the repeated value.We can clearly see this in a…

Q: If 0<x<4 then a < 6x + 2<b   a= b=

A: In this question, we need to find the values of a and b.

Q: 0 2 dt √4+t²

A:

Q: Is a product of two positive decimals each less than 1 always less than each of the decimals?

A: To state the give statement is true or false.

Q: Can you more clearly explain the actual error that was originally present that we were supposed to…

A:

Q: You forgot to solve the other question. The other question is 'Restate definition 4 in your own…

A: We have to restate definition of limit in own words

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.