Interview Questions

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Say you flip a coin 10 times and observe only one head. What would be your null hypothesis and p-value for testing whether the coin is fair or not?
Statistics & Experimentation
1 answer
"Null hypothesis (H0): the coin is fair (unbiased), meaning the probability of flipping a head is 0.5 Alternative (H1): the coin is unfair (biased), meaning the probability of flipping a head is not 0.5 To test this hypothesis, I would calculate a p-value which is the probability of observing a result as extreme as, or more extreme than, what I say in my sample, assuming the null hypothesis is true. I could use the probability mass function of a binomial random variable to model the coin toss b"
Lucas G. - "Null hypothesis (H0): the coin is fair (unbiased), meaning the probability of flipping a head is 0.5 Alternative (H1): the coin is unfair (biased), meaning the probability of flipping a head is not 0.5 To test this hypothesis, I would calculate a p-value which is the probability of observing a result as extreme as, or more extreme than, what I say in my sample, assuming the null hypothesis is true. I could use the probability mass function of a binomial random variable to model the coin toss b"See full answer
Statistics & Experimentation
Tell me about a time when your analysis influenced a business decision.
Business Analyst
Data Analysis
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Business Analyst
Data Analysis
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Asked at Google • a year ago
Do you believe in holding high ethical standards when conducting business or making decisions?
BizOps & Strategy
Behavioral
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BizOps & Strategy
Behavioral
Asked at OpenAI • 4 months ago
You have a new capability that's extremely powerful but potentially risky, how do you decide whether or not to ship it?
Product Manager
Behavioral
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Product Manager
Behavioral
Asked at OpenAI • 4 months ago
What would make you delay a major launch even under executive pressure?
Product Manager
Behavioral
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Product Manager
Behavioral

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Product Manager
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Product Manager
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