Calculate an appropriate test statistic and p-value for a population proportion.
Example Problems
A Rocket League ranked player wins of their matches in Diamond. They tried a new car loadout and want to test versus , where is the proportion of matches won with the new loadout.
With the new loadout, they played a random sample of 225 matches and won 126 of them.
Write the expression for the P-value of their test.
With the new loadout, they played a random sample of 225 matches and won 126 of them.
Write the expression for the P-value of their test.
A yearbook editor knows that of students typically submit their photo on time. She sent earlier reminders this year and wants to test versus , where is the proportion of students who submit on time this year.
She took a random sample of 75 students and found that 51 submitted on time.
Write the expression for the P-value of her test.
She took a random sample of 75 students and found that 51 submitted on time.
Write the expression for the P-value of her test.
A delivery company previously had 25% of shipments arrive late. After routing changes, they test versus , where is the proportion of late shipments with the new system.
They take a random sample of 160 shipments and find that 32 arrived late.
Write the expression for the P-value of their test.
They take a random sample of 160 shipments and find that 32 arrived late.
Write the expression for the P-value of their test.
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