Perform a One-Sample Z-Test for a Population Mean Using the P-Value

question 12

Essay

Perform a one-sample z-test for a population mean using the P-value approach. Be sure to state the hypotheses and thesignificance level, to compute the value of the test statistic, to obtain the P-value, and to state your conclusion. Also,assess the strength of the evidence against the null hypothesis.
-In one city, the average amount of time that tenth-graders spend watching television each week is 21.6 hours. The principal of Birchwood High School believes that at his school, tenth-graders watch less television. For a sample of 28 tenth-graders from Birchwood High School, the mean amount of time spent watching television per week was 19.4 hours. Do the data provide sufficient evidence to conclude that for tenth-graders at Birchwood High School, the mean amount of time spent watching television per week is less than the city average of 21.6 hours? Perform the appropriate hypothesis test using a significance level of 5%. Assume that $$\sigma$$ = 7.2 hours.

Develop effective opening strategies for presentations aimed at fund-raising.

Understand the impact of the digital era on adolescents and distinguish between digital native and non-native generations.

Recognize socioeconomic disparities in Internet access and usage among adolescents.

Evaluate trends in teen abortion rates in the U.S. and understand factors influencing these trends.

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Definitions:

Iraq War

A conflict that began in 2003 with the invasion of Iraq by a coalition led by the United States, aimed at toppling Saddam Hussein's regime.

Paralysis of Credit Markets

Paralysis of credit markets refers to a situation where lending comes to a near halt due to extreme uncertainty or financial crisis, leading to economic slowdown.

Economic Crisis

A situation characterized by a sharp decline in economic activity, often accompanied by a drop in GDP, high unemployment, and financial instability.

Abu Ghraib Prison

A detention facility near Baghdad, Iraq, that became notorious for the abuse and torture of prisoners by American military personnel in 2004.