A random sample of 91 observations produced a mean x = 25.7 and a standard deviation s = 2.4. a. Find a 95% confidence interval for u. b. Find a 90% confidence interval for u. c. Find a 99% confidence interval for u. ..... a. The 95% confidence interval is (L D. (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.)

Q: Evaluate a + 5, if a = 3, b = -5, and c = 6

A:

Q: y + 8 = 12 y =

A: when left side digit shift to right side then it becomes negative if digit is positive and vice…

Q: Find BT if B= 1 5 07-20 38

A: I have stated the method for the solution

Q: -37+z= -54

A: -37+z= -54 We have to add 37 to both sides-37+37+z= -54 +37

Q: Find A. -1 1 (4A)-1 = -4 2 A =

A: Solve the following

Q: Please answer D

A: (a) Given that the percentage of stadiums have just built in the past 20 years is, P=15%=15/100=0.15…

Q: -3w+5=23

A:

Q: Wht is 10-73

A:

Q: 15+c=-12

A:

Q: can you answer D also please ?

A: Given that, μ=85,σ=24n=36 (a) According to the central limit theorem, as the sample (n>30) is…

Q: A+12=13

A: Given,   A+12=13     We will solve it for the value of A

Q: How did u get  the 18?

A: Probability = favorable/total  Total balls = 8  Numbered from 1 to 8

Q: what about b, thanks

A:

Q: 2+36=38

A: Given 2+ 36 = 38  Yes the given statement is true .

Q: what is 15w+45

A: Given:15w+45

Q: 1. (3, x) 2. (3x + 3, y) 3. (y, cos x) 4. (x + y, x – Y)

A: using online vector field graphing we get 1-A 2-C