Question

In: Statistics and Probability

1.) The following data are the calories per half-cup serving for two popular ice cream brands...

1.) The following data are the calories per half-cup serving for two popular ice cream brands reviewed by Consumer Reports (July 1999): Brand A: 270 150 170 140 160 160 160 290 Brand B: 190 190 160 170 150 110 180 170 Construct a 90% confidence interval for the difference in the mean calories per half-cup for the two brands of ice cream. Interpret your results.

1a.)How many samples? 1b.) Full name of interval? 1c.) Is this problem for means or proportion? 1d.) State the interval you calculated

Solutions

Expert Solution

The data provided is as follows:

Brand A Brand B
270 190
150 190
170 160
140 170
160 150
160 110
160 180
290 170
n 8 8
Mean 187.5 165
SD 58.0025 26.1861

a.

2 samples

b.

Confidence Interval for the Difference Between Means Calculator for Unknown Population Variances

c.

Means

d.

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orchestra answered 2 years ago
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