A dealer says that the mean price of a new car is at least $18,800. You...
A dealer says that the mean price of a new car is at least $18,800. You Suspect this claim is incorrect and find that a random sample of 14 similar vehicles has a mean price of $18,00 and a standard deviation of $1250. Is there enough evidence to reject dealers claim at a=0.05
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A dealer says that the mean price of a new car is at
least $18,800. You...
4) A used car dealer says that the mean price of a 2019 Honda CR-V is...
4) A used car dealer says that the mean price of a 2019 Honda CR-V is more than $24,443. You suspect this claim is incorrect and find that a random sample of 14 similar vehicles has a mean price of $25,050 and a standard deviation of $1084. Is there enough evidence to reject the dealer's claim at a = 0.02? Assume the price of used cars is normally distributed. (18 points total) Step 1: Write the hypothesis statements, identify which...
A used car dealer says that the mean price of a three-year-old sports utility vehicle is...
A used car dealer says that the mean price of a three-year-old sports utility vehicle is $20,000. You suspect this claim is incorrect and find that a random sample of 22 similar vehicles has a mean price of $20,674 and a standard deviation of $1943. Is there enough evidence to reject the claim at a = 0.01? Complete parts (a) through (e) below. Assume the population is normally distributed (a) Write the claim mathematically and identify H, and H. Which...
A used car dealer says that the mean price of a three-year-old sports usilty vehicle is...
A used car dealer says that the mean price of a three-year-old sports usilty vehicle is $23,000. You suspect this claim is incorrect and fnd that a deviation of $1956, Is there enough evidence to reject the claim at a 0.10? Complete parts (a) through (e) below Assume the population is nomally distibuned (a) Write the claim mathematically and identily Ho and H Which of the following corectly states Ho and H? O A. Ho:H $23,000 в. но»-$23,000 H. :...
A used car dealer says that the mean price of a three-year-old sports utility vehicle is...
A used car dealer says that the mean price of a three-year-old sports utility vehicle is $23,000. You suspect this claim is incorrect and find that a random sample of 21 similar vehicles has a mean price of $23,530 and a standard deviation of $1952. Is there enough evidence to reject the claim at α=0.10? Complete parts (a) through(e) below. Assume the population is normally distributed.(a) Write the claim mathematically and identify H0 and Ha. Which of the following correctly...
quetsion 9 s A used car dealer says that the mean price of a three -year-old...
quetsion 9
s A used car dealer says that the mean price of a three -year-old sports unaty veticle s$19,000 You suspect this ctam s axcomect and nd that a random sample of 22 simtarvehicles has a mean price of $19,548 and a stardard devat on ot $1939 B (a) Wrte the claim mathematically and identity Ho and H Which of the tollowing correctly states Ho and H is there enough evidence to reject the daim at a-0 057 Complete...
For questions 20 – 23 answer all the following questions: a)State the Null and Alternate Hypotheses...
For questions 20 – 23 answer all the following questions: a)State the Null and Alternate Hypotheses b) Which is the claim? c) Describe the reject region as left tailed, right tailed or two-tailed. d) Will you use a z-test or a t-test? What is the critical value? e) Find the sample statistic. f) Do you reject or fail to reject the claim? Write out your decision in at least one sentence. 22. A used car dealer says that the mean...
4. A used car dealer says the mean price of a 2000 Ford F − 150...
4. A used car dealer says the mean price of a 2000 Ford F − 150 Super Cab is more than $16,500. Suppose that we know the population. standard deviation. H0: H1: test statistic:
A car company says that the mean gas mileage for its luxury sedan is at least...
A car company says that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 7 cars has a mean gas mileage of 21 mpg and a standard deviation of 4 mpg. At α-010, test the company's claim. Assume the population is normally distributed. here to view 1 of the normal Which sampling distribution should be used and why? O A....
#12-#15 A dealer claims that the price of a car is $20,500. You think that's high...
#12-#15
A dealer claims that the price of a car is $20,500. You think that's high so you sample 14 similar cars and find a mean price of $19,850 with a standard deviation of $1084. - e) none 1.77 d) -1.76 e) none 12. Find the test statistic (t.s.) for your sample using the formula -2.24) -16 d) .16 13. Find the critical t-score (t) for the left tailed test with a .05 and d.f.-13. 2.24 a) -1.96 b) -2.16...
Questions 12-15:A dealer claims that the price of a car is $20,500 You think that's wrong...
Questions 12-15:A dealer claims that the price of a car is $20,500 You think that's wrong so yo sample 14 similar cars and find a mean price of $19,850 with a standard deviation of $1184 Find the test statistic (t.s.) for your sample. (the formula is: 1 a)2.24 b)-2.24 c)-16 d) .16 e) none ofthese Find the critical t-score (t) for the two tailed test with α-05. , a) ±1.96 b) ±2.16 c) ±1.77 d) ±1.76 e) none of these...
4) A used car dealer says that the mean price of a 2019 Honda CR-V is more than $24,443. You suspect this claim is incorrect and find that a random sample of 14 similar vehicles has a mean price of $25,050 and a standard deviation of $1084. Is there enough evidence to reject the dealer's claim at a = 0.02? Assume the price of used cars is normally distributed. (18 points total) Step 1: Write the hypothesis statements, identify which...
A used car dealer says that the mean price of a three-year-old sports utility vehicle is $20,000. You suspect this claim is incorrect and find that a random sample of 22 similar vehicles has a mean price of $20,674 and a standard deviation of $1943. Is there enough evidence to reject the claim at a = 0.01? Complete parts (a) through (e) below. Assume the population is normally distributed (a) Write the claim mathematically and identify H, and H. Which...
A used car dealer says that the mean price of a three-year-old sports usilty vehicle is $23,000. You suspect this claim is incorrect and fnd that a deviation of $1956, Is there enough evidence to reject the claim at a 0.10? Complete parts (a) through (e) below Assume the population is nomally distibuned (a) Write the claim mathematically and identily Ho and H Which of the following corectly states Ho and H? O A. Ho:H $23,000 в. но»-$23,000 H. :...
quetsion 9
s A used car dealer says that the mean price of a three -year-old sports unaty veticle s$19,000 You suspect this ctam s axcomect and nd that a random sample of 22 simtarvehicles has a mean price of $19,548 and a stardard devat on ot $1939 B (a) Wrte the claim mathematically and identity Ho and H Which of the tollowing correctly states Ho and H is there enough evidence to reject the daim at a-0 057 Complete...
A car company says that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 7 cars has a mean gas mileage of 21 mpg and a standard deviation of 4 mpg. At α-010, test the company's claim. Assume the population is normally distributed. here to view 1 of the normal Which sampling distribution should be used and why? O A....
#12-#15
A dealer claims that the price of a car is $20,500. You think that's high so you sample 14 similar cars and find a mean price of $19,850 with a standard deviation of $1084. - e) none 1.77 d) -1.76 e) none 12. Find the test statistic (t.s.) for your sample using the formula -2.24) -16 d) .16 13. Find the critical t-score (t) for the left tailed test with a .05 and d.f.-13. 2.24 a) -1.96 b) -2.16...
Questions 12-15:A dealer claims that the price of a car is $20,500 You think that's wrong so yo sample 14 similar cars and find a mean price of $19,850 with a standard deviation of $1184 Find the test statistic (t.s.) for your sample. (the formula is: 1 a)2.24 b)-2.24 c)-16 d) .16 e) none ofthese Find the critical t-score (t) for the two tailed test with α-05. , a) ±1.96 b) ±2.16 c) ±1.77 d) ±1.76 e) none of these...
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