Socialist Party Voters a Pollster in Italy Wants to Challenge a Claim

question 83

Essay

Socialist Party Voters
A pollster in Italy wants to challenge a claim that 5% of the registered voters in his country are Socialists; he thinks the percentage is lower than that.In a test of hypothesis,H₀: p = 0.05 vs.H₁: p < 0.05,his random sample of size 1,000 registered voters revealed that the number of Socialists was 40. ​ ​
-{Socialist Voters Narrative} Test the hypotheses at the 5% significance level.

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Definitions:

Independent Variable

A variable in an experiment or model that is manipulated or changed to observe its effect on a dependent variable.

SST

In the context of statistics, often short for Sum of Squares Total, representing the total variability of a dataset.

Estimated Regression Equation

A formula that predicts a dependent variable based on one or more independent variables.

Sales

A measure of the total amount of goods and services sold by a company in a specific period.