Alarge university is interested in learning about the average time it takes students to drive to campus. the university sampled 238 students and asked each to provide the amount of time they spent traveling to campus. this variable, travel time, was then used conduct a test of hypothesis. the goal was to determine if the average travel time of all the university's students differed from 20 minutes. suppose the sample mean and sample standard deviation were calculated to be 23.2 and 20.26 minutes, respectively. calculate the value of the test statistic to be used in the test.

The value of test statistic is 2.442.

Step-by-step explanation:

Since we have given that

n = 238

Sample mean = 23.2 minutes

Standard deviation = 20.26 minutes

Hypothesis :

So, the test statistic value would be

Hence, the value of test statistic is 2.442.

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

you meant circumference well the answer is:

17.27876 miles

area is 23.7583

the radius is 2.75 miles

hope this hmu if needed.