BSTAT EXAM III questions and answers
graded A+ latest update
Type I error - correct answer ✔✔#2 _____ is the error of not accepting the null when the null is
true
critical value - correct answer ✔✔#3 The test statistic is compared with a(n) ______ in order to
decide whether the null hypothesis can be rejected
0 - correct answer ✔✔#4 Determine the p value for Ho: p>= 0.5 versus Ha: p<0.5 when n=225
and p bar =.52
Similar to the Z distribution - correct answer ✔✔#5 When degrees of freedom are sufficiently
large, t distribution is
1 - correct answer ✔✔#6 In testing Ho: u=3 versus Ha: u not equal to 3, when x bar= 3.15,
population standard deviation = 1.5, and n=100, what is the value of the z- statistic?
0 - correct answer ✔✔#7 In testing Ho: u=3 versus Ha: u not equal to 3, when x bar= 3.15,
population standard deviation = 1.5, and n=100, what is the p-value?
fail to reject the null - correct answer ✔✔#8 In testing Ho: u=3 versus Ha: u not equal to 3,
when x bar= 3.15, population standard deviation = 1.5, and n=100, what is your decision at 5%
significance level?
-1 - correct answer ✔✔#9 When 200 randomly selected car owners are surveyed, it is found
that the mean length of time they plan to keep their car is 7.01 years, and the standard
graded A+ latest update
Type I error - correct answer ✔✔#2 _____ is the error of not accepting the null when the null is
true
critical value - correct answer ✔✔#3 The test statistic is compared with a(n) ______ in order to
decide whether the null hypothesis can be rejected
0 - correct answer ✔✔#4 Determine the p value for Ho: p>= 0.5 versus Ha: p<0.5 when n=225
and p bar =.52
Similar to the Z distribution - correct answer ✔✔#5 When degrees of freedom are sufficiently
large, t distribution is
1 - correct answer ✔✔#6 In testing Ho: u=3 versus Ha: u not equal to 3, when x bar= 3.15,
population standard deviation = 1.5, and n=100, what is the value of the z- statistic?
0 - correct answer ✔✔#7 In testing Ho: u=3 versus Ha: u not equal to 3, when x bar= 3.15,
population standard deviation = 1.5, and n=100, what is the p-value?
fail to reject the null - correct answer ✔✔#8 In testing Ho: u=3 versus Ha: u not equal to 3,
when x bar= 3.15, population standard deviation = 1.5, and n=100, what is your decision at 5%
significance level?
-1 - correct answer ✔✔#9 When 200 randomly selected car owners are surveyed, it is found
that the mean length of time they plan to keep their car is 7.01 years, and the standard
