Hypothesis
At Quince Orchard, there's a proportion of Students who take AP Statistics, and a proportion of students who take regular Statistics. State the general form for the alternate hypothesis when comparing two proportions:
Ha: P1-P2 = 0
How many conditions are there to meet when performing a significance test between two proportions? This number is also the amount of sports teams who has made it to the region championship in 2024.
3
What number can your P-Value never exceed? This number is equivalent to the amount of state championships the boys baseball team has won.
1
What is the significance level you use when it's not stated in the problem? This number is similar to the probability of getting an A in Ms. Balfour's AP stat class.
a = .05
There are two baseball teams at Quince Orchard, Varsity and JV. In a test for comparing two proportions, the null hypothesis has the general form:
Ho: P1-P2 = Hypothesized value
At Quince Orchard, your homework is worth _% of your grade. This is also the name of one of the conditions for the significance test.
10%
Theres a large count of seniors graduating this year. When the large counts condition is met, the Z statistic will have:
Approximately the standard normal distribution
(We are able to find the appropriate P-value using a table or technology)
A significance test was performed on Quince Orchard boys and girls lacrosse players and wether or not they enjoy playing there sport. We got a significance level of .05, and a p-value of .034. When our P-value is less than our significance level, we:
Reject Ho
On the QO website, some of the headers are, "Staff directory, School calendar, and myMCPS," what are the "Headers" that help you set up and organize your significance tests?
State, Plan, Do, Conclude
When the random condition isn't met, we _________. You might find this saying on a yellow sign if the floor is wet in the QO hallways.
Proceed with caution
While taking AP Stat at Quince Orchard, using the formula sheet is essential. What is the formula for getting a Z-Statistic if all conditions are met?
Standardized test statistic=
Statistic-parameter/standard deviation of statistic
A significance test was performed on Quince Orchard 11th grade teachers and 12th grade teachers, and wether or not they will return to teach next year. Our significance level is .05, and we got a p-value of .6 . When our p-value is greater then our significance level, we:
Fail to reject Ho
Researchers are doing a study to compare the proportion of AP Stat students who completed every homework assignment in two class periods at Quince Orchard High School. A SRS of 30 students in Period 4 found that 11 kids completed every homework assignment. In period 6, a SRS of 31 students included 10 kids who completed every homework assignment. There are 700 students who take AP Stat at Quince Orchard High School. Does the data provide convincing evidence of a difference in the population proportions at the A = .05 significance level? State the appropriate hypothesis for performing a significance test.
Ho: P1-P2 = 0
Ha: P1-P2 ≠ 0
Theres a large count of Quince Orchard High School Students. What is the large count condition:
The expected number of successes and failures in each sample or group
The formula for making Ms. Balfour happy is doing your homework, the formula for p̂c
Number of successes in both samples combined/number of individuals in both samples combined
When we reject to do homework in AP Stat, we get a zero. When we reject Ho, there is:
Convincing evidence
Researchers are doing a study to compare the proportion of AP Stat students who completed every homework assignment in two class periods at Quince Orchard High School. A SRS of 30 students in Period 4 found that 11 kids completed every homework assignment. In period 6, a SRS of 27 students included 10 kids who completed every homework assignment. There are 700 students who take AP Stat at Quince Orchard High School. Define P1 and P2
P1 = The true proportion of all students in Period 4 that completed every homework assignment
P2 = The true proportion of all students in Period 6 that completed every homework assignment
There are 30 students in an AP stat class at Quince Orchard High School in Period 4. There are 33 students in Period 6 at Quince Orchard High School. Consider that Quince Orchard High School is a large High School with many class periods for AP stat. Check the 10% condition.
10%:
30<10% of students who take AP stat at QO
31<10% of students who take AP stat at QO
What are the Numbers you have to include in your, "Do" section of your significance test? This is the same amount of numbers as the amount of counselors we have at Quince Orchard.
Z Value, P Value, p̂1 and p̂2, N1, N2, X1 and X2 and the p̂ value.(9)
When we fail to reject doing our homework in AP Stat, Ms. Balfour is happy. When we fail to reject Ho, there is:
Not convincing evidence