Question
Vehicle type/class Year Make Model Price MPG (city) MPG (highway) Drive type sedan 2021 toyota camry XLE $ 33,372.00 24 34 all-wheel drive sedan 2021
Vehicle type/class | Year | Make | Model | Price | MPG (city) | MPG (highway) | Drive type |
sedan | 2021 | toyota | camry XLE | $ 33,372.00 | 24 | 34 | all-wheel drive |
sedan | 2021 | Nissan | Altima 2.5 SV | $ 31,633.00 | 28 | 39 | all-wheel drive |
sedan | 2021 | Honda | Accord Hybrid Touring | $ 37,435.00 | 44 | 41 | 2 wheel drive - front |
sedan | 2021 | Audi | A4 2.0T Premium | $ 48,765.00 | 24 | 34 | All wheel drive |
sedan | 2021 | Volkswagen | Arteon SE | $ 38,774.00 | 22 | 32 | 2 wheel drive - front |
sedan | 2022 | toyota | Prius Prime LE | $ 28,220.00 | 55 | 54 | 2 wheel drive - front |
crossover | 2021 | Subaru | Crosstrek 2.0i Premium | $ 28,827.00 | 28 | 33 | All wheel drive |
sedan | 2022 | Hyundai | Accent SEL | $ 17,940.00 | 33 | 41 | 2 wheel drive - front |
sedan | 2020 | Hyundai | Elantra SEL | $ 19,300.00 | 31 | 41 | 2 wheel drive - front |
Hatchback | 2021 | maza | MAZDA3 | $ 35,220.00 | 23 | 31 | All wheel drive |
Mean | $ 31,948.60 | ||||||
Median | $ 32,502.50 | ||||||
SD | 9141.969812 | ||||||
Sample size | 10 | ||||||
p | 0.5 | ||||||
q | 0.5 |
Along with finding a p and q from Week 3. Using this information, calculate two 95% confidence intervals. For the first interval you need to calculate a T-confidence interval for the sample population. You have the mean, standard deviation and the sample size, all you have left to find is the T-critical value and you can calculate the interval. For the second interval calculate a proportion confidence interval using the proportion of the number of cars that fall below the average. You have the p, q, and n, all that is left is calculating a Z-critical value,
Make sure you include these values in your post, so your fellow classmates can use them to calculate their own confidence intervals. Once you calculate the confidence intervals you will need to interpret your interval and explain what this means in words.
Do the confidence intervals surprise you, knowing what you have learned about confidence intervals, proportions and normal distribution?
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