5.

Mathematics

1 answer:

Verdich [7]3 years ago

4 0

Answer:

Step-by-step explanation:

let's say is 42 and 53 if u know your numbers of course you know the answer but the number that is bigger like 53 that the bigger number but if negative that is the smaller number

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State the null and alternative hypotheses for the situation described below for a statistical test. Testing to see if average sa

katovenus [111]

Answer:

H₀: μ₁ - μ₂ = 0 vs. Hₐ: μ₁ - μ₂ > 0.

Step-by-step explanation:

A test is to be performed to determine whether the average sales are higher in stores where customers are approached by salespeople than in stores where they aren't.

A two-sample test can be used to determine whether there is a significant difference between the sales of the stores where the customers are approached by salespeople and the stores where the customers are not approached by salespeople.

We can either use the z-test or t-test. If the population standard deviation for the sales of the two stores are given then we will use the z-test. And if not then the t-test will be used.

1 : group of stores where customers are approached by salespeople

2 : group of stores where customers are not approached by salespeople

The hypothesis can be defined as follows:

H₀: There is no difference between the average sales of the two stores, i.e. μ₁ - μ₂ = 0.

Hₐ: The sales for the store 1 is higher than that for store 2, i.e. μ₁ - μ₂ > 0.

6 0

3 years ago

Let tk(x)tk(x): be the taylor polynomial of degree k of the function f(x)=sin(x)f(x)=sin⁡(x) at a=0a=0.suppose you approximate f

Aloiza [94]

Ans : Note that: sin(x) = sum(n=0 to infinity) [(-1)^n * x^(2n + 1)]/(2n + 1)!. Then, since the series is alternating, the error in the approximation found by taking the first n terms of the series is no bigger than the n+1'th term. In other words: E â‰¤ a_n+1 = x^(2n + 3)/(2n + 3)!. (Note that a_n does not include (-1)^n, the alternating part) We need that 1/6 â‰¤ x^(2n + 3)/(2n + 3)!. Given |x| < 1, n = 2 will be the least integer solution. Thus, we need 2 + 1 = 3 terms.

4 0

3 years ago

3.43 Can you help me Simplify this question

mezya [45]

Answer:

192

Step-by-step explanation:

3 * 4^3

Using PEMDAS

Exponents first

4^3 = 4*4*4 = 64

Replace into the expression