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reported that about 47% ofthe general consumer population in the United States is loyal to the...
7) USA Today reported that about 47% of the general consumer population in the United States...
7) USA Today reported that about 47% of the general consumer population in the United States is loyal to the automobile manufacturer of their choice. Suppose Chevrolet did a study of a random sample of 1006 Chevrolet owners and found that 490 said they would buy another Chevrolet. Does this indicate that the population proportion of consumers loyal to Chevrolet is more than 47%? Use ? = 0.05. a) state the hypothesis for this test. b) state the p-value for...
USA Today reported that about 47% of the general consumer population in the United States is...
USA Today reported that about 47% of the general consumer population in the United States is loyal to the automobile manufacturer of their choice. Suppose Chevrolet did a study of a random sample of 987 Chevrolet owners and found that 494 said they would buy another Chevrolet. Does this indicate that the population proportion of consumers loyal to the car company is more than 47%? Use α = 0.01. Solve the problem using both the traditional method and the P-value...
USA Today reported that about 47% of the general population in the United States is loyal...
USA Today reported that about 47% of the general population in the United States is loyal to the automobile study of a random sample of 1002 Chevrolet owners and found that 489 said they would buy another Chevrolet. Does this indicate that the population proportion of consumers loyal to Chevrolet is more than 47%? Use α = 0.01 (a) What is the level of significance? OHo: p-0.47; H,: p 0.47 O Ho: p-0.47; H,: p> 0.47 O Ho: p >...
The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that 77% of all fatally...
The U.S. Department of Transportation, National Highway
Traffic Safety Administration, reported that 77% of all fatally
injured automobile drivers were intoxicated. A random sample of 28
records of automobile driver fatalities in Kit Carson County,
Colorado, showed that 14 involved an intoxicated driver. Do these
data indicate that the population proportion of driver fatalities
related to alcohol is less than 77% in Kit Carson County? Use α =
0.01. Solve the problem using both the traditional method and the
P-value...
Use technology to help you test the claim about the population mean, H. at the given...
Use technology to help you test the claim about the population mean, H. at the given level of significance, a, using the given sample statistics. Assume the population is normally distributed Claim: > 1230; a=0.02; o = 199.18. Sample statistics: x=1249.87, n=250 Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho 51230 Ha > 1230 | 0 C. Hp: Hs124987 Ha> 1249.87 OE. Ho: > 1249.87 Ha S 1249.87 O B. Ho 2 1249.87 Ha...
Use technology to help you test the claim about the population mean, μ, at the given...
Use technology to help you test the claim about the population mean, μ, at the given level of significance, α, using the given sample statistics. Assume the population is normally distributed. Claim: μ> 1 180: α 0.02; σ 211.79. Sample statistics: x 1203.69, n 250 ldentify the null and alternative hypotheses. Choose the correct answer below ) B. H0: μ s 1180 Ha : μ> 1180 Ha: μ 1203.69 HH 1180 Ha H 1180 O c. HOHs 1203 D. Ho...
A company surveyed adult Americans about their consumer debt. They reported that 47% of Millennials (those...
A company surveyed adult Americans about their consumer debt. They reported that 47% of Millennials (those born between 1980 and 1996) and 61% of Gen Xers (those born between 1965 and 1971) did not pay off their credit cards each month and therefore carried a balance from month to month. Suppose that these percentages were based on representative samples of 450 Millennials and 300 Gen Xers. Is there convincing evidence that the proportion of Gen Xers who do not pay...
Test the claim about the population mean, H. at the given level of significance using the...
Test the claim about the population mean, H. at the given level of significance using the given sample statistics. Claim: u = 40; a=0.01; 6 = 3.56. Sample statistics: x = 38.7, n= 76 Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: = 40 Ha <40 O C. Ho: u = 40 Ha: #40 O E. Ho: #40 Ha: p= 40 OB. Ho: < 40 H: H = 40 OD. Ho: > 40 Ha...
A random sample of 51 adult coyotes in a region of northern Minnesota showed the average...
A random sample of 51 adult coyotes in a region of northern Minnesota showed the average age to be x = 2.03 years, with sample standard deviation s = 0.82 years. However, it is thought that the overall population mean age of coyotes is μ = 1.75. Do the sample data indicate that coyotes in this region of northern Minnesota tend to live longer than the average of 1.75 years? Use α = 0.01. (a) What is the value of...
Excel Freeform Activity: Inferences About Two Population Variances Most individuals are aware of the fact that...
Excel Freeform Activity: Inferences About Two Population Variances Most individuals are aware of the fact that the average annual repair cost for an automobile depends on the age of the automobile. A researcher is interested in finding out whether the variance of the annual repair costs also increases with the age of the automobile. A sample of 26 automobiles 4 years old showed a sample standard deviation for annual repair costs of $170.88 and a sample of 23 automobiles 2...
USA Today reported that about 47% of the general population in the United States is loyal to the automobile study of a random sample of 1002 Chevrolet owners and found that 489 said they would buy another Chevrolet. Does this indicate that the population proportion of consumers loyal to Chevrolet is more than 47%? Use α = 0.01 (a) What is the level of significance? OHo: p-0.47; H,: p 0.47 O Ho: p-0.47; H,: p> 0.47 O Ho: p >...
The U.S. Department of Transportation, National Highway
Traffic Safety Administration, reported that 77% of all fatally
injured automobile drivers were intoxicated. A random sample of 28
records of automobile driver fatalities in Kit Carson County,
Colorado, showed that 14 involved an intoxicated driver. Do these
data indicate that the population proportion of driver fatalities
related to alcohol is less than 77% in Kit Carson County? Use α =
0.01. Solve the problem using both the traditional method and the
P-value...
Use technology to help you test the claim about the population mean, H. at the given level of significance, a, using the given sample statistics. Assume the population is normally distributed Claim: > 1230; a=0.02; o = 199.18. Sample statistics: x=1249.87, n=250 Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho 51230 Ha > 1230 | 0 C. Hp: Hs124987 Ha> 1249.87 OE. Ho: > 1249.87 Ha S 1249.87 O B. Ho 2 1249.87 Ha...
Use technology to help you test the claim about the population mean, μ, at the given level of significance, α, using the given sample statistics. Assume the population is normally distributed. Claim: μ> 1 180: α 0.02; σ 211.79. Sample statistics: x 1203.69, n 250 ldentify the null and alternative hypotheses. Choose the correct answer below ) B. H0: μ s 1180 Ha : μ> 1180 Ha: μ 1203.69 HH 1180 Ha H 1180 O c. HOHs 1203 D. Ho...
A company surveyed adult Americans about their consumer debt. They reported that 47% of Millennials (those born between 1980 and 1996) and 61% of Gen Xers (those born between 1965 and 1971) did not pay off their credit cards each month and therefore carried a balance from month to month. Suppose that these percentages were based on representative samples of 450 Millennials and 300 Gen Xers. Is there convincing evidence that the proportion of Gen Xers who do not pay...
Test the claim about the population mean, H. at the given level of significance using the given sample statistics. Claim: u = 40; a=0.01; 6 = 3.56. Sample statistics: x = 38.7, n= 76 Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: = 40 Ha <40 O C. Ho: u = 40 Ha: #40 O E. Ho: #40 Ha: p= 40 OB. Ho: < 40 H: H = 40 OD. Ho: > 40 Ha...
Excel Freeform Activity: Inferences About Two Population Variances Most individuals are aware of the fact that the average annual repair cost for an automobile depends on the age of the automobile. A researcher is interested in finding out whether the variance of the annual repair costs also increases with the age of the automobile. A sample of 26 automobiles 4 years old showed a sample standard deviation for annual repair costs of $170.88 and a sample of 23 automobiles 2...
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