Cassie Moran 12/B/17 B:37 Math 240-07 Statistical Methods I Fall 2017 Homework:

Question

Cassie Moran 12/B/17 B:37 Math 240-07 Statistical Methods I Fall 2017 Homework: Section 7.2 Hypothesis Tests (Pop. SD Known) HW Score: 55.34%, 7.19 o. 9of13(12 complete! Score: 0.25 of 1 pt E Question Helg 57.2.29-T te dam about the population mean. at the gven level of significance using the given sample statistics Clin .7000, a 0.06, . 305. Sample statistics x-6800, n.42 dentity the nul and altemative hypotheses Choose the correct answer below ng.-7000 H, 7000 7000 Calculate the standardized test statistie The standardzed test statistic s Round to two decimal places as needed.) Enter your answer in the answer box and then click Check Answer Cloar All Check Answor To see what to study next, go to your Study Plan Q Search or enter website name 3 5 6 7 8 0

Explanation / Answer

The statistical software output for this problem is:

One sample Z summary hypothesis test:
: Mean of population
H0 : = 7000
HA : 7000
Standard deviation = 395

Hypothesis test results:

Hence,

Standardized test statistic = - 3.28

Mean n Sample Mean Std. Err. Z-Stat P-value 42 6800 60.949823 -3.2813877 0.001

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