Assignment: Chapter 11 Assignment 0 Check My Work (No more tries available) A St

Question

Assignment: Chapter 11 Assignment 0 Check My Work (No more tries available) A Study tound tnar tha varance in the numer of wihikcies onned or leaced ty subecripers to a magaone is 0.98. Assume a samgle of 12 subierters s o to snather magazne provised the folewing ana on the number of velicles owned or leased: 2.1, 2, 1, 3. 21. 1, 2. 1, 0, and 1 ?. Compute tre sample variance n the aunter of veicies owned or leased by the 12 stuenbers (to 4 decima's) 6268 b. Test the hypothesis Ra l ?2-0.98 to determine-ether the variance in tne nureer ar venides owned er osed by suntenben a, e e ether megaaine differs troma098 Caicuate the value of the test statisbc tto 3 deomas) 31, Two-tal pvalue s/greater then 0.20 -T]. use Table 11.1. ?. . .06 ievai t, signfante, what is your concusion? Check My Work (Nu more tries avnilable)

Explanation / Answer

The statistical software output for this problem is:

One sample variance hypothesis test:
?2 : Variance of variable
H0 : ?2 = 0.98
HA : ?2 ? 0.98

Hypothesis test results:

Hence,

a) Sample variance = 0.6288

b) Test statistic = 7.058

p - value is greater than 0.20

Cannot reject

Variable Sample Var. DF Chi-Square Stat P-value Data 0.62878788 11 7.0578231 0.4112

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