We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
The "cold start ignition time" of an automobile engine is being investigated by a gasoline manufacturer....
The "cold start ignition time" of an automobile engine is being investigated by a gasoline manufacturer. The following times (seconds) were obtained for a test vehicle. 1.68, 1.95, 2.69, 2.36, 3.07, 3.19, 2.57, 1.88 Variance = Standard Deviation =
2. An automobile manufacturer wants to estimate the mean gasoline mileage that its customers will obtain with its new compact model. It is known that gasoline mileage for this model is normally distributed with a population standard deviation of 2.5 miles per gallon. In a sample of n=16 test runs the average mileage was 28 mpg. Construct a 98% confidence interval for the true mean gasoline mileage for this new compact model. Show your work
A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is approximately normal distributed and has standard deviation σ = 25 hours. A random sample of 62 bulbs has a mean life of x-bar = 74.036 mm. Construct a 90% confidence interval around the true population mean for piston ring diameter.
Could you please help me with questions 1a-1b please? ( since i
could only find the formula needed for 1a, if u aren't sure with 1b
u can just do 1a but please dont reply "no enough data given "
because i have a lil systemical problem with replying the comments)
* the first question was asked to complete the anova table (
table 9.1 in the picture ) by using the formulas ( in the
pictures)
* I have...