Question 4 Consider the following results for two samples randomly taken from tw

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Question 4 Consider the following results for two samples randomly taken from two normal populations with equal variances. mple IT 49 0.8 At a 05, is there conclusive evidence that one population has a larger mean? O There is enough evidence that sample 1 has a larger mean There is enough evidence that sample 2 has a larger mean O There is not enough evidence that ether one of population has a larger mean than the other There is enough evidence that the mean amounts from the two populations are the same Moving to another question will save this response search vy/ , vvvvvvv 17DE, '7DE1/'

Explanation / Answer

Ans:

Test statistic:

z=(49-44)/sqrt((1.2^2/28)+(0.8^2/35))

z=18.94

p-value=P(z>18.94)=0

As,p-value<0.05,we reject the null hypothesis.

There is enough evidence that sample 1 has larger mean.

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