Tata Advanced Systems Quality Inspector Interview Questions and Answers

Different hypothesis tests are statistical tests used to make inferences about population parameters based on sample data.

• Hypothesis tests are used to determine if there is enough evidence to support or reject a claim about a population parameter.

• Common types of hypothesis tests include t-tests, chi-square tests, ANOVA, and z-tests.

• Each hypothesis test has its own assumptions, test statistic, and critical values.

• Exampl...read more

Logistic regression is a statistical model used to predict the probability of a binary outcome based on input variables.

• Logistic regression is a type of regression analysis used when the dependent variable is categorical.

• It estimates the probability of an event occurring by fitting data to a logistic function.

• The output is a binary outcome, usually represented as 0 or 1.

• It is commonly used in various fields such as fin...read more

ANOVA is a statistical method used to compare means of two or more groups to determine if there is a significant difference.

• ANOVA stands for Analysis of Variance.

• It is used to analyze the variance between groups and within groups.

• It compares the means of different groups to assess if the differences are statistically significant.

• ANOVA calculates F-statistic and p-value to determine significance.

• It assumes normal distri...read more