![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 12.03.2021 15:50, dukes1207
The following data are the daily number of minutes of smartphone use for a random sample of 8 students at your institution: 117, 156, 89, 72, 116, 125, 101, 100.
(a) Test the null hypothesis according to which the true mean is 100 min against the alternative that it is different than 100. Use a significance level of 5% (state the null and the alternative hypothesis, the test statistic and the conclusion). (10 points)
(b) Compute a 95% confidence interval for the true mean number of minutes per day a student uses his or her smartphone. Is your finding consistent with your answer in (a) (Explain why or why not)?
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00, ladnerhailey16
What is sin 7x/4 ? i need on this urgent trig
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00, jortizven0001
Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30, renaudciera
Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.
Answers: 3
Do you know the correct answer?
The following data are the daily number of minutes of smartphone use for a random sample of 8 studen...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 28.11.2019 05:31
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/fizika.png)