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excel assignment help
Question 1
| Quiz 4 Due October 22, 2020 Question 1 | |
| A surveey of 750 likely voters in Ohio was conducted by the Rasmussen Poll just prior to the general | |
| election. The state of the economy was thought to be an important determinant of how people would | |
| vote. Among other things, the survey found that 165 of the respondants rated the economy as good | |
| or excellent and 315 rated the economy as poor | |
| Develop a point extimate of the proportion of likely voters in Ohio who rated the economy as good | |
| or excellent. | |
| Construct a 95% confidence interval of the proportion of likely voters in Ohio who rated the economy | |
| as good or excellent. | |
| as poor. |
Question 2
| Quiz 4 Question 2 |
| Milage tests are conducted for a particular model of automobile. If 98% coonfidence interval with a margin of error |
| of 1 mile per gallon is desired, how many automobiles should be used in the test? Assume that the preliminary |
| milage tests indicate the standard deviation is 2.6 miles per gallon. |