![]() It means there is a big difference between the satisfaction ratings of both restaurants. Step 3: As per the distribution table, the critical value at a 90% confidence interval with a degree of freedom of 48 will be 1.677. Step 2: Calculate the degree of freedom for a two-sample t-test using the formula Step 1: Let us find the two-sample t-test value using the following formula: ![]()
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