The mean annual tuition and fees for a sample of 12 private colleges was $36,800 with a standard deviation of $5000. a dotplot shows that it is reasonable to assume that the population is approximately normal. you wish to test whether the mean tuition and fees for private colleges is different from $33,700 compute the value of the test statistic and state the number of degrees of freedom. a) 0.620; 12 degrees of freedom b) 0.620; 11 degrees of freedom c) 2.148; 12 degrees of freedom d) 2.148: 11 degrees of freedom

The value of the test statistic and the number of degrees of freedom is 2.148 and 11 respectively.

Step-by-step explanation:

The mean annual tuition and fees for a sample of 12 private colleges was $36,800 with a standard deviation of $5000

n = 12

Claim: You wish to test whether the mean tuition and fees for private colleges is different from $33,700

Since n < 30 and sample standard deviation is given so, we will use t test

Formula :

Substitute the values in the formula :

Degree of freedom = n-1 = 12-1 =11

So,. Option D is true

Hence the value of the test statistic and the number of degrees of freedom is 2.148 and 11 respectively.

its a straight line parallel to the time axis

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation: