The next 10 questions refer to the following scenario. The average student studies eight hours for a statistics exam and receives a grade of 84. In a sample of 25 students who study twelve hours for a statistics exam you find that the average grade is X = 87. You want to test the hypothesis that studying twelve hours statistically significantly increases academic performance.

Q: How many even 3-digit numbers can be formed from the digits 1, 3, 4, 8, and 9 with no repetitions…

A: Out of the total 5 digits 1, 3, 4, 8 and 9 given, the even digits are 4 and 8. For the 3- digit…

Q: -48 6

A:

Q: how many integers from 1 to 1000 are multiples of 3 or 5 (or both)

A: We want to find number of integer from 1 to 1000 are multiples of 3 or 5 (or both)

Q: factors of 24 that add up to 10

A: factors of 24 that add up to 10

Q: 20. What is the sum of all the exponents of the expansion of (8x-7y)¹2 a. 163 b. 150 c. 953 d. 156

A: Introduction: The binomial expansion theorem is very useful in expanding a binomial terms with…

Q: Calculate the sample median, mean, variance, standard deviation, standard error, and 95% confidence…

A: Mean is the average of all the observation in the sample. Median is the middle value which separate…

Q: 4. Determine (16-912) dt c4

A: We will solve the problem.

Q: 6/4 - 2/4

A: Explanation and solutions is given below.....

Q: 7 items chosen 5 at a time

A:

Q: n?_4

A:

Q: 8x + 6 c² + 9x - 361] S[x² 3x

A:

Q: *1.5.11 Add. - 4+(-5) = 4 + (-5) =

A: Introduction: Integers are whole numbers (that is, numbers with no fractions) that include negative…

Q: 16 2/5- 8 4/9

A:

Q: 7. How many terms are there in the multinomial expansion of (x₁ + x₂ + ... .+x)"? ******..

A: We want to find the number of terms in the multinomial expansion of x1 + x2 + ... + xrn

Q: 20/5+5+2*8

A: Consider the given expression

Q: Reduce the following to the lowest terms. Show how to calculate the greatest common divisor by the…

A: The given fraction number is,Here we can write,As we can see the number 4 can be canceled out.This…

Q: Randomly drawing and immediately three red M&Ms in a row from a bag that contains 10 red M&Ms out of…

A: Given: 30 total M&Ms in that 10 red M&Ms.

Q: 19. Determine the binomial power that when expanded is x12 x⁹ + x6 x15 + x3 1 + Show your work. 2 16…

A:

Q: factors of 20 that add up to 9

A:

Q: coefficient of variaton for given populaion   5,8,9,11,15,16,17,19

A:

Q: The average starting salary of individuals with a master's degree in statistics is normally…

A:

Q: Foctors of 18

A: Factorization of the number is obtained by the writing the number as the product of prime numbers A…

Q: 5 7/12 + 1 3/4 + 4 1/2

A: Given that 5712+134+412Solution  :5712+134+412=57+39+24612

Q: . Expand the following by using the binomial formula. Simplify your answer. (Vi+ (express your final…

A: We have to expand (√x+√y)4

Q: 1/5 + 1/10 + 1/15

A: Sum of numbers

Q: wat is the least mutilple for 20,8,and 4 is

A:

Q: 9 5/12 - 3 2/3 =

A: Case 1: Let the given number be in mixed fraction notation.

Q: 6 3/20 - 6 3/8

A:

Q: | (16 – 2*) dz =

A: To find : the value of ∫0216-x4dx   Using the formula ∫abxndx=1n+1bn+1-an+1

Q: Evaluabe: 25+3 se

A: Here we find Laplace inverse transform

Q: Give a problem solving example of correlation analysis and its solutions using this formula.

A: It is generally believed that height and weight of a person have linear relationship. Data on height…

Q: 1*10+8*1=?

A: the given expression is: we have to find the value of the given expression.

Q: Compute the indicated product.   -1 3   9 2 0   3 9 3

A:

Q: 17 8 15 Find show work please 2.

A:

Q: 1. Use expansion along the 3rd row -4 3 1 2 -1 1 7 5

A:

Q: randomly drawing three green skittles in a row from a bag that contains eight green skittles out of…

A: Given that a bag contains 25 skittles in which eight are green. Three green skittles are drawn from…