1) Ask 10 people (try to get 5 males and 5 females) the following questions

A) Their ages

B) How many vitamins they take daily

C) How many carbonated sodas they drink each day

D) How many alcoholic beverages they drink per month

E) Write your own question. Ask your participants if they agree with something or if they do something. For example, you may want to ask them if they eat popcorn when they go to the movies or if they support a political issue. It must be a yes/no question. SAVE YOUR DATA - You will use the data you gathered above for the problems below and more question in future weeks.

Practice Problems:

1) Use your data from above. This week assume that historically the average person takes 3 vitamins on a daily basis. Conduct a hypothesis test analysis to determine if 3 is still the correct average number. Write your hypotheses in correct statistical notation. Finally use the important numbers from your output to explain your results. Use alpha = 0.05. Post only the relevant numbers, not all of the output; then explain your results.

2) Use your data from above. Analyze if more than 58% support an issue or partake in an activity. (Question E above). Write the hypotheses. Show the relevant numbers. Then explain your results. Use alpha = 0.05.

Sex

Age

How many vitamins do you take daily?

How many carbonated sodas do you drink daily?

How many alcoholic beverages do you drink monthly?

Do you eat popcorn when you go to the movies?

1

Female

23

0

1

0

Yes

2

Female

24

0

0

12

Yes

3

Female

29

1

0

4

No

4

Female

26

2

1

6

Yes

5

Female

27

1

0

3

Yes

6

Male

28

3

2

20

Yes

7

Male

32

3

1

0

No

8

Male

25

2

2

20

Yes

9

Male

23

2

2

30

Yes

10

Male

27

3

1

15

No

Mean

26.4

1.7

1

11

70% yes;

30% no

Standard deviation

2.836273

1.159502

0.816497

10.1105

Two-tailed t-test

Null hypothesis (Ho) = μ = 3 The average number of vitamins that the average person takes daily is 3.

Alternative hypothesis (Ha) = μ ≠ 3 The average number of