10.1

9.

mu and right tailed

10.

proportion and left tailed

11.

standard deviation and two tailed

12.

proportion and right tailed

13.

mu and left tailed

14.

standard deviation and two tailed

15.

Ho: p=.105

H1: p>.105 type one error would be beleiving H1, but the births had not increased type two would be beleiving the births had not changed, but they did

17.

Ho: mu=218600

H1: mu<218600 say that mu had gone down, falsely say that mu had stayed the same, falsely

19.

Ho: sandard deviation=.7

H1: standard deviation < .7 say H1, falsely say H0 falsely

21.

Ho: mu=47.47

H1: mu =/= 47.47 say H1, falsely say H0 falsely

10.2

7.

  1. 1.645
  2. 2.3145
  3. reject

9.

  1. -2.33
  2. -.74
  3. don’t reject

11.

  1. +-1.96
  2. .0681
  3. fail to reject H0

13.

it’s successful, but not by much.

15.

  1. .7389<2.075

  2. Type answer here.

17.

  1. .05=.05

  2. yes

19.

  1. 5.53 is too big

  2. Type answer here.

10.3

1.

  1. 2.602

  2. 1.729

  3. 2.179

2.

  1. 1.321

  2. 2.426

  3. 2.738

3.

  1. -1.38

  2. 1.645

  3. Skip this problem.

  4. no because 1.3 is not in the rejection region

4.

  1. 2.67

  2. 1.282

  3. Skip this problem.

  4. yes, in the rejection region

5.

  1. 2.5

  2. 2.326

  3. Skip this problem.

  4. yes, in rejection region

  5. (99.39, 110.20)

11.

Ho: M=67

Ha: M>67

  1. this value represents the probability of the test having a type 1 error

  2. 1.645 < 2.054

13.

Ho: M=22

Ha: M>22

  1. population normal

  2. .02<.05,

  3. accept null

15.

-45.52 is too big to make sence

17.

1.685>.8133 accept

19.

(37.1, 40.69) accept

10.4

1.

  1. 28.869

  2. 14.041

  3. 16.047, 45.722

3.

  1. 20.49

  2. 35.173

  3. Skip this problem

  4. yes, in rejection region

x <- sd(c(108.5,80.4,67.4,95.5,58.0,86.3,75.9,70.9,65.1,72.0))
x
## [1] 15.20504

13.

Note. The sample standard deviation of the data shown is.\(15.205043\). You will have to knit this to see the number though.

Type the value of your test statistic here.

Type your conclusion here.

15.

Type the value of your test statistic here.

Type your conclusion here.