Take a Test-Tabron shcrts Microsoft Edge 57619196& BUSNS760 QC S2 2017 Quiz Week

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Take a Test-Tabron shcrts Microsoft Edge 57619196& BUSNS760 QC S2 2017 Quiz Week 5 QUIZ CH 9 This Question 1 pt The data table below contains the amounts that a sample of nine customers spent tor lunch (n dolars) at a fast-food restaurant Compl parts (a) through (d ete Clik here to view of 4 75 5 17 584 6 56 735 741 8 67 B35 983 p a. Al the 0.05 level or sig icarce, is there evide hal that rngan amour pent lunch is uirTeleri UITI 36. State the null and alternative hypotheses. 65 (Type integers or decimals. Do not indude the s symbol in your answer) Identity the critical values) The cntical value(s) isiare (Round four decinal pleous as needed. Use la lo ale answers as needkul petermine the test stahstK The test statistic is (Round to four decimal places as needed) State the conclusion. 1rom $6.50 Ho here evidence condude that the mean amount spent 10r lunch ditterent b. Determine the p-value and interpret rs meaning. he p-value 15 Click to select your answers) EE O Type here to search Tabron Shorts 1/2 7 1:00 PM Sub Quiz This Quiz: 10 pts possible 4/21/20

Explanation / Answer

a)
Hypothesis:
Ho : mu =6.5
Ha : mu not equal to 6.5

Critical value for 0.05 significance level = +/- 2.306

Test statistic:

x = 7.04 , n =9 , s =1.78 , mean = 6.5

t = ( x - mean) / ( s /sqrt(n))
= ( 7.04 - 6.5) / ( 1.78 / sqrt(9))
= 0.91

We fail to reject H0. There is not sufficient evidence to conclude that mean amount spent for lunch is different from 6.5

b) We need to find p value using t = 0.91 , df =8
P value = .389416.

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