Chapter 9: z-test and t-tast

Quiz
•
Mathematics
•
9th - 12th Grade
•
Hard
+1
Standards-aligned
Salko Kolarevic
Used 6+ times
FREE Resource
31 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When performing a significance test, we're looking for convincing evidence to __________ the null hypothesis in favor of the alternative hypothesis.
refute
dispute
reject
accept
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Small p-values mean that our sample was very unlikely if the null hypothesis is true. Therefore, small p-values are ________________ that the null hypothesis is wrong.
convincing evidence
believable proof
reliable information
justifiable inference
Tags
CCSS.HSS.ID.B.6B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The symbol for the significance level is ____.
Tags
CCSS.HSN.Q.A.1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Lumber companies dry freshly cut wood in kilns before selling it. A certain percentage of boards develop cracks on their ends during drying. The current drying procedure is known to produce cracks in 16% of boards. The drying supervisor wants to try a new method that she believes will result in a proportion of cracked boards that is less than 16%.
Write the appropriate hypotheses.
Ho: p = 0.16
Ha: p = 0.16
Ho: p = 0.16
Ha: p =/= 0.16
Ho: p = 0.16
Ha: p > 0.16
Ho: p = 0.16
Ha: p < 0.16
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Since our p-value of 0.027 is >undefined , we fail to reject the null hypothesis. We do not have convincing evidence that the new method is better.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Last year, a pineapple company in Hawaii grew pineapples that weighed an average of 31 ounces. The company installed a new irrigation system hoping that this year’s crop of pineapples would be larger than 31 ounces.
Write appropriate hypotheses.
Ho: u = 31 ounces
Ha: u > 31 ounces
Ho: u = 31 ounces
Ha: u < 31 ounces
Ho: u = 31 ounces
Ha: u =/= 31 ounces
Ho: u = 31 ounces
Ha: u = 31 ounces
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Since our p-value of 0.1317 is >undefined , we fail to reject the null hypothesis. We do not have convincing evidence that the pineapples are larger.
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