The statistical decision is to fail to reject the null, and Ho is really false r

Question

The statistical decision is to fail to reject the null, and Ho is really false researcher wants to determine whether high school students who attend an SAT then score significantly different on the SAT than students who do not attend the students who attend the preparation course average 1200 on the SAT, with a 100 1050). The 16 students who attend the preparation 100). The IeFor those who do not attend the course, the population mean is 1050 mu data, can the researcher con of 100. On the basis of these data, can the researcher conclude that the 200reation course has a significant difference on SAT scores? Set alpha equal to. 01 The appropriate statistical procedure for this example would be A. t-test B. Z-test Is this a one-tailed or a two-tailed test? for one-tailed two-tailed ?, The most appropriate null hypothesis (in words) would be A. There is no statistical difference in SAT scores when comparing students who took the SAT prep course with the general population of students who did not take the SAT prep course B. There is a statistical difference in SAT scores when comparing students who took the SAT take the SAT prep course. T prep course with the general took the SA take the SAT prep course. C. The students who took the SAT prep course did not score significantly higher on the SAT when compared to the general population of students who did not take the SAT prep course. D. The students who took the SAT prep course did score significantly higher on Lo take the SAT prep course. the SAT when compared to the general population of students who did not take the SAT prep course. The most appropriate null hypothesis (in symbols) would be mu_SATprep 1050 B. mu_SATprep 1200 C. mu_SATprep 1050 D. mu_SATprep 2 1050 Set up the criteria for making a decision. That is, find the critical value using an alpha =0l. (Make source au are sign specific + - or plus minus Summarize the data Steps: What is the numeric value of your standard error?

Explanation / Answer

18 ) option b use z test

19) option b its a two tailed test

20) option d

21 ) option a null hypothesis =1050

22) critical value is alpha =0.01 means its 99% ci from z table we have value is 2.576

test stastic = 1200-1050/(100/sqrt6) = 150/25=1.5

23) standard error = standard deviation / sqrt n =

given sd = 100 n =16

therfore 100/sqrt16 = 100/4 = 25

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.