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Q 1/2
Score 0
A manufacturer claims that the probability of their product failing within the first year is 20%. In a random sample of 100 items, 30 fail within the first year. What is the correct hypothesis test for this scenario?
30
T-test
Chi square test
Binomial test
Z-test
Q 2/2
Score 0
For a coin treated to have a probability of heads 0.55, you flip it 200 times and get 120 heads. What type of test statistic would you use to test the null hypothesis that the coin is fair?
30
Z score
Chi square
F score
T score
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2 questions
Q.
A manufacturer claims that the probability of their product failing within the first year is 20%. In a random sample of 100 items, 30 fail within the first year. What is the correct hypothesis test for this scenario?
1
30 sec
Q.
For a coin treated to have a probability of heads 0.55, you flip it 200 times and get 120 heads. What type of test statistic would you use to test the null hypothesis that the coin is fair?
