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A researcher wants to estimate the difference in the means of two populations. A random sample...

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Basic Math

A researcher wants to estimate the difference in the means oftwo populations. A random sample of 36 items from the firstpopulation results in a sample mean of 430. A random sample of 49items from the second population results in a sample mean of 460.The population standard deviations are 120 for the first populationand 140 for the second population. From this information, a 95%confidence interval for the difference in population means is_______.

Select one:

a. -102.83 to 42.43

b. -27.6049 to 87.6049

c. -76.53 to 16.53

d. -95.90 to 35.90

Answer & Explanation Solved by verified expert
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SOLUTIONFrom given dataA researcherwants to estimate the difference in the means of two populations Arandom sample of 36 items from the first    See Answer
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