All categories

3 years ago

Will crown brainiest the first answer

Mathematics

1 answer:

Aliun [14]3 years ago

3 0

Answer:

Step-by-step explanation:

10a² : 5a² = 10 : 5 = 2

You might be interested in

List all the points that are on the same plane as point V

topjm [15]

I believe the points should be as follows : X, S, Y, and U.

3 0

2 years ago

Millie works 8 hours on Saturday and earns £6.50 an hour. Her bus fare to work costs £2.75 and she also spends £4.25 on her lunc

Nimfa-mama [501]

The answer is 7.50 ......

6 0

3 years ago

King kyle orders the construction of his future mausoleum ( a fancy tomb) so that people never forget his awesomeness. His archi

BartSMP [9]

Answer:

okay so,

so do a 16 by 14 rectangle it should be good

sry if its wrong i tried but i hope it helped ;0

5 0

3 years ago

Read 2 more answers

Solve for W<br><br> -1=W-17

blagie [28]

Answer:

W=16

Step-by-step explanation:

Add 17 to both sides

5 0

3 years ago

A teacher was interested in finding out whether a special study program would increase the scores of students on a national exam

bija089 [108]

Answer:

Check the explanation

Step-by-step explanation:

Going by the first attached image below we reject H_o against H_1 if obs. $T > t_{\alpha /2;n-1}$

here obs.T=1.879

$\therefore obs.T \ngtr 2.447=t_{0.025;6}$

we accept $H_o:\mu _{1}=\mu_{2}$ at 5% level of significance.

i.e there is no sufficient evidence to indicate that the special study program is more effective at 5% level of significance.

this problem is simillar to the previous one except the alternative hypothesis.

Let X_i's denote the bonuses given by female managers and Y_i's denote the bonuses given by male managers.

we assume that $X_i \sim N(\mu _{1},\sigma _{1}^{2}) Y_i \sim N(\mu _{2},\sigma _{2}^{2})$ independently

We want to test $H_0:\mu_{1}=\mu_{2} vs H_1:\mu_{1}\neq \mu_{2}$

define $D_i=X_i-Y_i , i=1(1)8$

now $D_i\sim N(\mu _{1}-\mu _{2}=\mu _{D},\sigma _{1}^{2}+\sigma _{2}^{2}=\sigma _{D}^{2}) , i=1(1)8$

the hypothesis becomes

$H_0:\mu_{D}=0 vs H_1:\mu_{D}\neq 0$

in the third attached image, we use the same test statistic as before

i.e at 5% level of significance there is not enough evidence to indicate a difference in average bonuses .

3 0

3 years ago