Asked by Yakyra Shelton on May 08, 2024
Verified
An Internet server claimed that its users averaged 15 hours per week. To determine whether this was an overstatement, a competitor conducted a survey of 150 customers and found that the average time spent online was 13 hours per week with a standard deviation of 6.5 hours. Do the data provide sufficient evidence to indicate that the average hours of use are less than that claimed by the first Internet server? Test at the 1% level of significance.
Test statistic = ______________
p-value = ______________
Conclusion: ______________
Interpretation: __________________________________________
Online Usage
The pattern or extent of use of the internet and its services by individuals or groups.
Standard Deviation
A measure of the dispersion or spread of a set of numbers, indicating how much the values in the set deviate from the mean.
Test Statistic
A calculated value from sample data used to test a hypothesis within the framework of a statistical test.
- Figure out the test statistic based on supplied data sets and adjudicate on hypotheses by considering critical values or p-values.
- Integrate the concepts of critical values, significance levels (α), and p-values in the practice of hypothesis scrutiny.
- Discern the practical meaning behind the results of hypothesis tests.
Verified Answer
AC
akhil chowdaryMay 11, 2024
Final Answer :
-3.768; -2.33; Reject H0; The average time is less than claimed by the Internet server
Learning Objectives
- Figure out the test statistic based on supplied data sets and adjudicate on hypotheses by considering critical values or p-values.
- Integrate the concepts of critical values, significance levels (α), and p-values in the practice of hypothesis scrutiny.
- Discern the practical meaning behind the results of hypothesis tests.