Oppiskele A/B Testing Fundamentals | Product Experimentation and Hypothesis Testing

A/B testing is a core method in product management for comparing two versions of a product feature to determine which performs better. In an A/B test, you split your users into two groups: the control group, which experiences the current version, and the variant group, which experiences a new feature or change. The main goal is to measure how this change impacts user behavior, so you can make data-driven decisions about rolling out new features. Common metrics tracked in A/B tests include conversion rate (such as sign-ups or purchases), click-through rate, and engagement. Clearly defining your experiment goal and success metric is essential before running any test.


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import numpy as np

# Simulate 1000 users in each group
n_users = 1000

# Control group: 12% conversion rate
control_conversions = np.random.binomial(1, 0.12, n_users)
control_rate = control_conversions.mean()

# Variant group: 15% conversion rate
variant_conversions = np.random.binomial(1, 0.15, n_users)
variant_rate = variant_conversions.mean()

print(f"Control group conversion rate: {control_rate:.3f}")
print(f"Variant group conversion rate: {variant_rate:.3f}")

Once you have calculated conversion rates for both groups, you interpret these numbers to guide your product decisions. If the variant group has a higher conversion rate than the control group, and the difference is meaningful, this suggests your new feature or change may be successful. However, it's important to consider statistical significance and context before making any rollout decisions. Conversion rate gives you a quick snapshot of how effective your experiment was at driving user actions that matter to your business.


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# Calculate the difference in conversion rates
difference = variant_rate - control_rate

print(f"Difference in conversion rates: {difference:.3f}")

if difference > 0:
    print("The variant performed better than the control.")
elif difference < 0:
    print("The control performed better than the variant.")
else:
    print("No difference between control and variant.")

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              123456789101112131415
            
import numpy as np

# Simulate 1000 users in each group
n_users = 1000

# Control group: 12% conversion rate
control_conversions = np.random.binomial(1, 0.12, n_users)
control_rate = control_conversions.mean()

# Variant group: 15% conversion rate
variant_conversions = np.random.binomial(1, 0.15, n_users)
variant_rate = variant_conversions.mean()

print(f"Control group conversion rate: {control_rate:.3f}")
print(f"Variant group conversion rate: {variant_rate:.3f}")


              1234567891011
            
# Calculate the difference in conversion rates
difference = variant_rate - control_rate

print(f"Difference in conversion rates: {difference:.3f}")

if difference > 0:
    print("The variant performed better than the control.")
elif difference < 0:
    print("The control performed better than the variant.")
else:
    print("No difference between control and variant.")

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Kiitos palautteestasi!

Osio 2. Luku 1

A/B Testing Fundamentals

1. What is the purpose of an A/B test in product management?

2. How can Python help analyze A/B test results?

3. What metric is commonly used to measure A/B test success?

A/B Testing Fundamentals

1. What is the purpose of an A/B test in product management?

2. How can Python help analyze A/B test results?

3. What metric is commonly used to measure A/B test success?