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ue 4:08 PM LUS https://edugenwileyplus.com/edugen/student/mainfr.uni a search know what you think about Firefox Take Survey Learn More FULL SCREEN PRINTER VERSION BACK NEXT Chapter 09, Section 9.2, Problem 026 Incorrect. According to the U.S. Bureau of Labor Statistics, all workers in America who had a bachelor's degree and were employed earned an average of $1235 a week in 2014. A recent sample of 372 American workers who have a bachelor's degree showed that they earn an average of $1248 per week. Suppose that the population standard deviation of such earnings is $159. a. Find the p-value for the test of hypothesis with the alternative hypothesis that the current mean weekly earning of American workers who have a bachelor's degree is higher than $1235, will you reject the null hypothesis at = 0.05? Round your answer to four decimal places p-value Reject b. Test the hypothesis of part a using the critical-value approach and = 0.05 Round your answer for the observed value of z to three decimal places. udy Reject Ho Version 4.24.2.4 Privacy Policy I © 2000-2017 John Wiley&Sons;,Inc. All Rights Reserved. A Division of John Wiley & Sons, Inc. 28Explanation / Answer
The statistical software output for this problem is:
One sample Z summary hypothesis test:
: Mean of population
H0 : = 1235
HA : > 1235
Standard deviation = 159
Hypothesis test results:
Hence,
a) p - Value = 0.0574
Do not reject Ho
b) z = 1.577
Do not reject Ho
Mean n Sample Mean Std. Err. Z-Stat P-value 372 1248 8.243766 1.5769492 0.0574Related Questions
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