In table below are indicated the numbers of students passed and failed by three instructors. Test the hypothesis that the failure rates of students of the three instructors are different. Use 0.01- Mr. X Mr. Y Mr. Z 50 Passed Failed so 45 10 20 a- Calculate the test statistic (round to 2 decimals) b- Find the critical value C- What is your conclusion?

Q: 3y² - 2y-1 (-)-5y²- 2y +6

A:

Q: 2) 36³x=¹

A:

Q: expand (a-b)7

A: The solution is given in the next step.

Q: 4root2*4root2

A:

Q: +–3m+–9m+4+5+–10m

A: The expression is given as 1+–3m+–9m+4+5+–10m. Simplifying the given expression. 1+–3m+–9m+4+5+–10m…

Q: 4. Expand and simplify (2x + 3)*

A: We have to expand and simplify the following expression: . We will apply the binomial theorem to…

Q: d. 1 3a+18 = 1 - 8 a+6

A:

Q: (n + 4)3 =

A: Given query is to expand (n+4)3

Q: 18(9+7)+3

A: 18(9+7)+3

Q: 14 1

A: Given triangle is What is another side length?

Q: expand (x+y)6

A:

Q: elow is an incomplete probability model showing the likelihood of selecting a marble from a way.…

A: Second option is correct 3/10

Q: 3(m – 5) + m

A: 3(m-5)+m=0 3m-15+m=0 add both side 15 we get 2m=15

Q: 8(14-9)+5 32+6

A: The given expression is