![subject](/tpl/images/cats/mat.png)
Mathematics, 01.06.2021 18:40 laceybabin1952
A university runs a new class designed to improve the Freshman experience. The hypothesis is that participation in the new class will improve attitudes toward school. To evaluate the hypothesis, the research team uses a test statistic to compare the sample mean from a sample to the mean of a national norm group. The assumed population mean (the expected mean if the null is true) is 20, the mean from a sample of 25 students is 22, and the standard error is 4. What is the value of the test statistic from this analysis
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 20.06.2019 18:02, kimberlee304
Cybil flips a coin and rolls a fair number cube at the same time. what is the probability that she will toss tails and roll a number less than 3?
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:50, zymikaa00
Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30, lauren21bunch
Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?
Answers: 2
![image](/tpl/images/cats/mat.png)
You know the right answer?
A university runs a new class designed to improve the Freshman experience. The hypothesis is that pa...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 11.02.2021 02:40
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 11.02.2021 02:40
![Konu](/tpl/images/cats/en.png)
English, 11.02.2021 02:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 11.02.2021 02:40
![Konu](/tpl/images/cats/en.png)
English, 11.02.2021 02:40
![Konu](/tpl/images/cats/biologiya.png)
Biology, 11.02.2021 02:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 11.02.2021 02:40
![Konu](/tpl/images/cats/biologiya.png)
Biology, 11.02.2021 02:40