college statistics
posted by penelope .
I am having a bit of trouble with the top half of the questions. I have an answer below for questions 510, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you.
1. The area to the right of 1.93 under Student's tcurve with 11 degrees of freedom is
a. Between 5% and 2.5%
b. More than 95%
c. Between 25% and 10%
d. Less than 1%
2. The area to the left of 1.5 under Student's curve with 9 degrees of freedom is
a. Between 25% and 10%
b. Between 10% and 5%
c. Exactly 7.5%
d. Between 95% and 90%
3. The area to the left of 1.25 under Student's tcurve with 20 degrees of freedom is
a. Less than 10%
b. Between 25% and 10%
c. More than 75%
d. More than 90%
4. You should use a ttest when which of the following apply? (Choose all of the correct responses.)
a. The size of the sample (draws from the box) is less than or equal to 25.
b. Only for hypothesis tests about the average.
c. For hypothesis tests about either the percentage or the average.
d. For every hypothesis test where you know the standard deviation of the box.
Use the information below to answer questions 57.
Commuter students at a certain college claim that the average distance they have to commute to campus is less than 26 miles per day. A random sample of 16 commuter students was surveyed and yielded an average distance of 29 miles and a SD of 8 miles. We want to test the hypothesis that the students' claim is correct.
5. The test statistic for this hypothesis test is closest to:
a. 0.5
b. 1.0
c. 1.5
d. 3
I think it is C
6. The pvalue for this hypothesis is:
a. between 25% and 10%
b. between 10% and 5%
c. between 5% and 2.5%
d. between 1% and 0.5%
I think it is B
7. Based on the pvalue, you can conclude that:
a. It is not plausible that the average commute is 29 miles per day.
b. It is plausible that the average commute is 29 miles per day.
c. It is not plausible that the average commute is less than 26 miles per day.
d. It is plausible that the average commute is less than 26 miles per day.
I think it is D
Use the information below to answer questions 810.
An advertising agency would like to create an advertisement for a fastfood restaurant claiming that the average waiting time from ordering to receiving your order at the restaurant is less than 5 minutes. The agency measured the time from ordering to deliver of order for 25 customers and found that the average time was 4.7 minutes with an SD+ of .6 minutes. Test the following hypotheses: Null: Waiting time is 5 minutes or more Alternative: Waiting time is less than 5 minutes
8. The test statistic is closest to:
a. 0.5
b. 2.5
c. 3.03
d. 12.5
I think it is B
9. The pvalue is:
a. less than 1%
b. between 10% and 5%
c. between 5% and 2.5%
d. more than 95%
I think it is A
10. The appropriate conclusion is:
a. Reject the null hypothesis
b. Do not reject the null hypothesis
c. Reject the alternative hypothesis
d. Do not reject the alternative hypothesis
I think it is D

student of fortune has closed so all the users are at aceyourcollegeclasses . co m
Respond to this Question
Similar Questions

Foundations of Behavior
Compare and Contrast these words, Structuralism, Functionalism and Behaviorism. Thanks! Hi there. Could you give a context for those three words? 
Math
10 multiple choice questions each with three possible answers only one of which is correct. A student guesses the answer to every question. (a)What is the probability that the student will answer the first six questions correctly and … 
college statistics
I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 … 
stats
I am having a bit of trouble with the top half of the questions. I have an answer below for questions 510, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you. 1. The area to the … 
Statistics
There are 100 questions from a SAT test, and they are all multiple choice with possible answers of a,b,c,d,e for each question only one answer is correct. Find the mean number of correct answers for those who make random guesses for … 
Elementary Statistics
There are 100 questions from an SAT test, and they are all multiple choice with possible answers of a,b,c,d,e. For each question, only one answer is correct, find the standard deviation for the numbers of correct answers for those … 
Estimating sums and differnces of fractions
Hello! My 10 year old daughter is having trouble understanding these preparation questions from her math teacher. I know the answer but I don't know how to explain it to her.. I'm sorry if that doesn't make any sense. When I was in … 
math
There are 80 questions on a college entrance examination. Two points are awarded for each correct answer, and onehalf point is deducted for each incorrect answer. How many questions does Tami need to answer correctly in order to score … 
DEAR REINY
dear reiny i am sim who posted 4 questions this morning i am in dubai and my final examinations are after 13 days and by the way those questions were not my homework or assignment those were some sums which we get on our school website … 
@ Helps meas pleases
Your previous post was deleted because it had lots of questions  but no answers. Please repost no more than five of those questions along with your answers. I'll be glad to check them.