Find the critical t-score (t) for the two tailed test with α-.01. a) t2.58 b) t3.01...
c) reject Ho at α .01 and 1 R Ho at α- d) F 1 R Ho at α-.05 and α-.01 e) none of these Question 16 0: Typically 10% o cars o fruit prepar du ingth current proces reduco oration afier 90 days. In arandom sample of 225 cans prepared with a new process, 12 show discoloration after 90 days. Perform an hypothesis test at α-.01 to de in the percentage of cans showing discoloration termine if the new...
Questions 16-20: Typically 10% ofcans offruit prepared usingthe currentprocess how discoloration after 90 days, In a random sample of 225 cans prepared with a new process. 12 show discoloration afier 90 days Perform an hypothesis test at a01 to determine if the new process makes a difference in the percentage of cans showing discoloration 16. This hypothesis test is a involving a population a) ITT, mean b) ITT, proportion c) 2TT, mean d) 2TT, proportion e) none of these The...
sample 14 similar cars and find a mean price of $19,850 with a standard deviation of $1184 12. Find the test statistic (t.s.) for your sample. (the formula is: t.) a) 2.24 b) -2.24 c 16 d) 16 e) none of these Find the critical t-score (t ) for the two tailed test with α-05. a) ±1.96 13. b) ±2.16 c) ±1.77 d) ±1.76 e) none of these 14. Find the critical t-score (te) for the two tailed test with...
#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...
please answer 38, thanks. 26. Given a test statistic of 2.09 paired with a crtical z-score of 2 33 on a one tailed test, then the conclusion fail to reject H. at α-1% b)fail to reject H,at α-5%e reject KedacceptH,ata-1% d) reject, and accept H. at a " 5% At a 95% a) e) nooc of these 27. interval, how often would we expect u to 5% 95% c)1% fall outside the inerval estimate? 28. We are allowed to use...
a. 26 Given a test statistic of 2.09 paired with a critical z-score of 233 on a one tailed test, then the c fail to reject at α-1% b)fail to reject Hua-5% reject and accept H. at a-5% e) noot ofthese ,reject ILndecepti,re.rs 27. At a 95% a) 1A interval, how often would we expect 95% c)1% to 28. We are allowed to use the normal distribution if d)90% e)10% ơīs known b) n-500 c α b) df c) the-test...
Test the hypothesis using the P-value approach. Be sure to verily the requirements of the test Ho p-0.3 versus H P>0.3 n-200, x=80; α:01 Calculate the test statistic, zo #0 (Round to two decimal places as needed) Identify the P-value P-value (Round to three decimal places as needed) Choose the correct result of the hypothesis test for the Pvalue approach belovw ty O A. Reject the nul hypothesis, because the P-value is greater than α O B. Do not reject...
15) Find the critical value that defines the rejection region for the following hypothesis test: Is the average life expectancy of Americans more than 78.8 years? To test this claim, a sample of 400 Americans are studied, with an average lifespan of 79.4 years and a standard deviation of 3.9 years. Use a significance level of 0.05. A) 1.649 B) 1.645 C) 3.08 D) -1.649 E) None of the Above 16) A large software company gives job applicants a test...
15) Find the critical value that defines the rejection region for the following hypothesis test: Is the average life expectancy of Americans more than 78.8 years? To test this claim, a sample of 400 Americans are studied, with an average lifespan of 79.4 years and a standard deviation of 3.9 years. Use a significance level of 0.05. A) 1.649 B) 1.645 C) 3.08 D) -1.649 E) None of the Above 16) A large software company gives job applicants a test...