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Fuel economy estimates for automobiles built one year predicted a mean of 26.2 mpg and a...
Fuel economy estimates for automobiles built one year predicted a mean of 26.8 mpg and a...
Fuel economy estimates for automobiles built one year predicted a mean of 26.8 mpg and a standard deviation of 5.2 mpg for highway driving. Assume that a Normal model can be applied. Use the 68-95-99.7 Rule to complete parts a) through e) a) Draw the model for auto fuel economy. ОА. OC A A A 14 21 b) In what interval would you expect the central 95% of autos to be found? Using the 88-95-99.7 rule, the central 95% of...
Fuel economy estimates for automobiles built one year predicted a mean of 957 1/100km and a...
Fuel economy estimates for automobiles built one year predicted a mean of 957 1/100km and a standard deviation of 2.33/100km for highway driving Assume that a Normal model can be applied Use the 68-95-997 Rule to complete parts a through e below a) Draw the model for auto fuel economy OB OC. ОА. b) In what interval would you expect the contral 99.7% of autos to be found? Using the 68-85-007 Rule, the central 99.7% of autos can be expected...
please answer all parts! Fuel economy estimates for automobiles built one year predicted a mean of...
please answer all parts!
Fuel economy estimates for automobiles built one year predicted a mean of 28 mpg and a standard deviation of 6.1 mpg for highway driving. Assuming the gas mileages for automobiles are normally distributed, use the Empirical Rule to answer the following: The middle 99.7% of automobiles can be expected to have gas mileages between .Approximately . Approximately and % of automobiles will have a gas mileage more than 341 mpg. % of automobiles will have gas...
please answer all parts. Fuel economy estimates for automobiles built one year predicted a mean of...
please answer all parts.
Fuel economy estimates for automobiles built one year predicted a mean of 27.7 mpg and a standard deviation of 8.43 mpg for highway driving. Assuming the gas mileages for automobiles are normally distributed, use the Empirical Rule to answer the following: The middle 99.7% of automobiles can be expected to have gas mileages between Approximately % of automobiles will have a gas mileage more than 5299 mpg. Approximately % of automobiles will have gas mileages between...
I really need a and e but if you could check and make sure my answers...
I really need a and e but if you could check and make sure my
answers are right for the other ones that would be great
thanks!
1 of 110 complete) ▼ This Test: 100 pts p his Question: 5 pts Fuel economy estimates for automobiles built one year predicted a mean of 25.2 mpg and a standarc deviation of 6.8 mpg for highway driving. Assume that a Normal model can be applied. Use the 68-95-99.7 Rule to complete parts...
I need help with this question. the 1 may not be correct SECTION 9.2 7. The...
I need help with this question.
the
1 may not be correct
SECTION 9.2 7. The Environmental Protection Agency (EPA) fuel economy estimates for automobiles suggest a mean of 24.8 mpg and a standard deviation of 6.2 mpg for highway driving Assume that a Normal model can be applied 132 136 137 a) Draw the model for auto fuel economy Clearly label it, showing what the 68-95-99.7 Rule predicts about miles per gallon b) in what interval would you expect...
Show all work please. Normal Distribution Worksheet 1. The EPA fuel economy estimates for automobile models...
Show all work please.
Normal Distribution Worksheet 1. The EPA fuel economy estimates for automobile models tested recently predicted a Normal model with a mean of 24.8 mpg and a standard deviation of 6.2 mpg. a. In what interval would you expect the central 68% of autos to be found? b. About what percent of autos should get less than 31 mpg? C. What percent of cars should get between 31 and 37 mpg? d. What percent of cars should...
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway...
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway driving) for a sample of cars has a mound-shaped and symmetric distribution with mean x =38 and standard deviation s = 10 points. Illustrate your answers with graphs. a. Calculate the percent of cars whose fuel efficiency is less than 48 mpg. b. Calculate the percent of scores that are between 28 and 68 mpg. c. Calculate the 16th percentile of the data.
* The prices of pizzas can be described by a normal model with a mean of...
* The prices of pizzas can be described by a normal model with a mean of $12 and a standard deviation of $3. 12. Draw the model showing the 68-95-99.7 Rule 13. Use the 68-95-99.7 Rule to estimate the proportion of pizzas with prices between $12 and $18 14. Use the 68-95-99.7 Rule to estimate the proportion of pizzas with prices less than $9 15. Use the 68-95-99.7 Rule to estimate the proportion of pizzas with prices more than $21
8. In a recent year the fuel economy of all passenger vehicles was 19.8 mpg. A...
8. In a recent year the fuel economy of all passenger vehicles was 19.8 mpg. A trade organization sampled 50 passenger vehicles for fuel economy and obtained a sample mean of 20.1 mpg with standard deviation 2.45 mpg. The sample mean 20.1 exceeds 19.8, but perhaps the increase is only a result of sampling error. a. Perform the relevant test of hypotheses at the 20% level of significance using the critical value approach. b. C. Compute the observed significance of...
Fuel economy estimates for automobiles built one year predicted a mean of 26.8 mpg and a standard deviation of 5.2 mpg for highway driving. Assume that a Normal model can be applied. Use the 68-95-99.7 Rule to complete parts a) through e) a) Draw the model for auto fuel economy. ОА. OC A A A 14 21 b) In what interval would you expect the central 95% of autos to be found? Using the 88-95-99.7 rule, the central 95% of...
Fuel economy estimates for automobiles built one year predicted a mean of 957 1/100km and a standard deviation of 2.33/100km for highway driving Assume that a Normal model can be applied Use the 68-95-997 Rule to complete parts a through e below a) Draw the model for auto fuel economy OB OC. ОА. b) In what interval would you expect the contral 99.7% of autos to be found? Using the 68-85-007 Rule, the central 99.7% of autos can be expected...
please answer all parts!
Fuel economy estimates for automobiles built one year predicted a mean of 28 mpg and a standard deviation of 6.1 mpg for highway driving. Assuming the gas mileages for automobiles are normally distributed, use the Empirical Rule to answer the following: The middle 99.7% of automobiles can be expected to have gas mileages between .Approximately . Approximately and % of automobiles will have a gas mileage more than 341 mpg. % of automobiles will have gas...
please answer all parts.
Fuel economy estimates for automobiles built one year predicted a mean of 27.7 mpg and a standard deviation of 8.43 mpg for highway driving. Assuming the gas mileages for automobiles are normally distributed, use the Empirical Rule to answer the following: The middle 99.7% of automobiles can be expected to have gas mileages between Approximately % of automobiles will have a gas mileage more than 5299 mpg. Approximately % of automobiles will have gas mileages between...
I really need a and e but if you could check and make sure my
answers are right for the other ones that would be great
thanks!
1 of 110 complete) ▼ This Test: 100 pts p his Question: 5 pts Fuel economy estimates for automobiles built one year predicted a mean of 25.2 mpg and a standarc deviation of 6.8 mpg for highway driving. Assume that a Normal model can be applied. Use the 68-95-99.7 Rule to complete parts...
I need help with this question.
the
1 may not be correct
SECTION 9.2 7. The Environmental Protection Agency (EPA) fuel economy estimates for automobiles suggest a mean of 24.8 mpg and a standard deviation of 6.2 mpg for highway driving Assume that a Normal model can be applied 132 136 137 a) Draw the model for auto fuel economy Clearly label it, showing what the 68-95-99.7 Rule predicts about miles per gallon b) in what interval would you expect...
Show all work please.
Normal Distribution Worksheet 1. The EPA fuel economy estimates for automobile models tested recently predicted a Normal model with a mean of 24.8 mpg and a standard deviation of 6.2 mpg. a. In what interval would you expect the central 68% of autos to be found? b. About what percent of autos should get less than 31 mpg? C. What percent of cars should get between 31 and 37 mpg? d. What percent of cars should...
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway driving) for a sample of cars has a mound-shaped and symmetric distribution with mean x =38 and standard deviation s = 10 points. Illustrate your answers with graphs. a. Calculate the percent of cars whose fuel efficiency is less than 48 mpg. b. Calculate the percent of scores that are between 28 and 68 mpg. c. Calculate the 16th percentile of the data.
* The prices of pizzas can be described by a normal model with a mean of $12 and a standard deviation of $3. 12. Draw the model showing the 68-95-99.7 Rule 13. Use the 68-95-99.7 Rule to estimate the proportion of pizzas with prices between $12 and $18 14. Use the 68-95-99.7 Rule to estimate the proportion of pizzas with prices less than $9 15. Use the 68-95-99.7 Rule to estimate the proportion of pizzas with prices more than $21
8. In a recent year the fuel economy of all passenger vehicles was 19.8 mpg. A trade organization sampled 50 passenger vehicles for fuel economy and obtained a sample mean of 20.1 mpg with standard deviation 2.45 mpg. The sample mean 20.1 exceeds 19.8, but perhaps the increase is only a result of sampling error. a. Perform the relevant test of hypotheses at the 20% level of significance using the critical value approach. b. C. Compute the observed significance of...
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