subject
Mathematics, 12.03.2020 18:37 risolatziyovudd

The water diet requires you to drink two cups of water every half hour from the time you get up until you go to bed, but otherwise allows you to eat whatever you like. Four adult volunteers agree to test the diet. They are weighed prior to beginning the diet and after six weeks on the diet. The weights (in pounds) arePerson 1 2 3 4 Mean Weight before diet 180 125 240 150 173.75 Weight after six weeks 170 130 215 152 166.75 Difference 10 -5 25 -2 7 The goal is to test whether the water 'diet' leads to a mean weight loss.

i) What is the null hypothesis? Let subscript 1 indicate the measurement before the diet, and subscript 2 the measurement after six weeks.

(Pick letter corresponding to the best answer.)

a - H0: x?1-x?2 = 7

b - H0: ?1-?2 = 7

c - H0: x?1-x?2 = 0

d - H0: ?1-?2 = 0

ii) The alternative hypothesis for this test will be:

(Pick letter corresponding to the best answer.)

a - Ha: x?1-x?2 > 7

b - Ha: ?1-?2 > 7

c - Ha: x?1-x?2 > 0

d - Ha: ?1-?2 > 0

e - Ha: ?1-?2 < 0

iii) Give a value for the test statistic, to 2 places past the decimal.

iv) How many degrees of freedom are there?

v) What are bounds on the P value?

Choose answer from the following and report the letter.

a P < .001

b .01 < P < .05

c .05 < P < .1

d P > .1

vi) Construct a 99% confidence interval for the mean weight loss. Give answer to TWO places past the decimal place.

Lower Limit

Upper Limit

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 12:50
What is the pattern in the values as the exponents increase?
Answers: 3
question
Mathematics, 21.06.2019 13:00
Acompany is making new soccer uniforms for a team. the company uses 2.5 yards of fabric for each shirt. the company uses 82.5 yards of fabric to make shirts and shorts for 15 players. the equation and solution below represents the situation. 15(2.5+x)=82.5; x=3 what does the solution, x=3, represent?
Answers: 1
question
Mathematics, 21.06.2019 18:00
For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip
Answers: 1
question
Mathematics, 22.06.2019 02:00
15 oranges weigh 3.75 kilograms (kg). if each orange weighs approximately the same, approximately how much does each orange weigh?
Answers: 3
You know the right answer?
The water diet requires you to drink two cups of water every half hour from the time you get up unti...
Questions
question
Geography, 18.10.2020 14:01
question
Mathematics, 18.10.2020 14:01
question
Physics, 18.10.2020 14:01