Question

Med Student Sleep Average (Raw Data, Software Required): Here we consider a small study on the...

Med Student Sleep Average (Raw Data, Software Required):
Here we consider a small study on the sleep habits of med students and non-med students. The study consists of the hours of sleep per night obtained from 30 non-med students and 25 med students. The sample data is given in the table below. Test the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students. Test this claim at the 0.05 significance level.



(a) The claim states there is a difference between population means (μ1μ2 ≠ 0). What type of test is this?

This is a two-tailed test.

This is a right-tailed test.    

This is a left-tailed test.


(b) Use software to calculate the test statistic. Do not 'pool' the variance. This means you do not assume equal variances.
Round your answer to 2 decimal places.

t =



(c) Use software to get the P-value of the test statistic. Round to 4 decimal places.
P-value =

(d) What is the conclusion regarding the null hypothesis?

reject H0

fail to reject H0    


(e) Choose the appropriate concluding statement.

The data supports the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students.

There is not enough data to support the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students.   

We reject the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students.

We have proven that, on average, the mean hours of sleep for all med students is different from that for non-med students.

    
    
Non-Med (x1) Med (x2)
6.3 5.8
8.7 8.3
5.0 4.4
5.1 4.5
4.0 3.5
6.3 5.7
6.8 6.3
7.9 7.4
6.7 6.2
5.1 4.5
5.2 4.8
4.8 4.2
5.7 5.1
6.5 5.9
4.6 4.2
8.0 7.6
3.1 2.6
6.1 5.6
4.8 4.2
5.7 5.2
7.1 6.6
7.7 7.3
5.8 5.4
5.9 5.4
7.8 7.2
6.8
9.4
9.5
7.8
6.3

Homework Answers

Answer #1


The statistic software output for this problem is :

(a)

This is a two-tailed test.

(b)

t = 2.11

(c)

P-value = 0.0393

(d)

reject H0

(e)

The data supports the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Med Student Sleep Average (Raw Data, Software Required): Here we consider a small study on the...
Med Student Sleep Average (Raw Data, Software Required): Here we consider a small study on the sleep habits of med students and non-med students. The study consists of the hours of sleep per night obtained from 30non-med students and 25 med students. The sample data is given in the table below. Test the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students. Test this claim at the 0.01 significance...
Med Student Sleep Average (Raw Data, Software Required): Here we consider a small study on the...
Med Student Sleep Average (Raw Data, Software Required): Here we consider a small study on the sleep habits of med students and non-med students. The study consists of the hours of sleep per night obtained from 30 non-med students and 25 med students. The sample data is given in the table below. Test the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students. Test this claim at the 0.01...
Med Student Sleep Average (Raw Data, Software Required): Here we consider a small study on the...
Med Student Sleep Average (Raw Data, Software Required): Here we consider a small study on the sleep habits of med students and non-med students. The study consists of the hours of sleep per night obtained from 30 non-med students and 25 med students. The sample data is given in the table below. Test the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students. Test this claim at the 0.05...
(Raw Data, Software Required): Here we consider a small study on the sleep habits of med...
(Raw Data, Software Required): Here we consider a small study on the sleep habits of med students and non-med students. The study consists of the hours of sleep per night obtained from 30 non-med students and 25med students. The sample data is given in the table below. Test the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students. Test this claim at the 0.01 significance level. (a) The claim...
Sleep (Raw Data, Software Required): Assume the general population gets an average of 7 hours of...
Sleep (Raw Data, Software Required): Assume the general population gets an average of 7 hours of sleep per night. You randomly select 35 college students and survey them on the number of hours of sleep they get per night. The data is found in the table below. You claim that college students get less sleep than the general population. That is, you claim the mean number of hours of sleep for all college students is less than 7 hours. Test...
Here we consider the sleep habits of med students versus non-med students. The study consists of...
Here we consider the sleep habits of med students versus non-med students. The study consists of the hours of sleep per day obtained from 25 med students and 28 non-med students. The summarized data is given in the table. Here, x¯ is the mean hours of sleep per day from each sample. The degrees of freedom (d.f.) is given to save calculation time if you are not using software. Student Type n x¯ s2 s Med (?1x1) 25 5.6 0.8281...
SHOW ALL WORK. DO NOT USE SOFTWARE TO GENERATE ANSWERS. Calculate the R-chart and X-bar chart...
SHOW ALL WORK. DO NOT USE SOFTWARE TO GENERATE ANSWERS. Calculate the R-chart and X-bar chart limits for the data given below. Day A B C D 1 7.2 8.4 7.9 4.9 2 5.6 8.7 3.3 4.2 3 5.5 7.3 3.2 6.0 4 4.4 8.0 5.4 7.4 5 9.7 4.6 4.8 5.8 6 8.3 8.9 9.1 6.2 7 4.7 6.6 5.3 5.8 8 8.8 5.5 8.4 6.9 9 5.7 4.7 4.1 4.6 10 3.7 4.0 3.0 5.2 11 2.6 3.9...
Assume the gen. population gets an average of 7 hours of sleep per night. You randomly...
Assume the gen. population gets an average of 7 hours of sleep per night. You randomly select 55 college students and survey them on their sleep habits. From this sample, the mean number of hours of sleep is found to be 6.83 hours with a standard deviation of 0.55 hours. You claim that college students get less sleep than the general population. That is, you claim the mean number of hours of sleep for all college students is less than...
Register Balance (Raw Data, Software Required): Here we investigate whether the register balance at a local...
Register Balance (Raw Data, Software Required): Here we investigate whether the register balance at a local retail store is better when a manager is on-duty compared to when a manager is off-duty. Evidence like this might be used to determine whether or not an employee is stealing money from the register when no manager is around. The table below gives the register balance (0 means the register balance is right on, negative means there is less money than there should...
Register Balance (Raw Data, Software Required): Here we investigate whether the register balance at a local...
Register Balance (Raw Data, Software Required): Here we investigate whether the register balance at a local retail store is better when a manager is on-duty compared to when a manager is off-duty. Evidence like this might be used to determine whether or not an employee is stealing money from the register when no manager is around. The table below gives the register balance (0 means the register balance is right on, negative means there is less money than there should...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT