Mileage tests are conducted for a particular model of automobile. if a 98% confidence interval with a margin of error of 1 mile per gallon is desired, how many automobiles should be used in the test? assume that preliminary mileage tests indicate the standard deviation is 2.6 miles per gallon. anderson, david r.. essentials of statistics for business and economics (p. 377). south-western college pub. kindle edition.

37

Step-by-step explanation:

Given : Significance level :

Critical value :

margin of error : E= 1 mile per gallon

Population standard deviation: miles per gallon.

We know that when the population standard deviation is known then the formula to find the sample size is given by  :

 [Round to the next whole number.]

Hence, the required number of automobiles should be used in the test = 37

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation: