Please include NEAT work in order to get a good review. Assume that a simple random...
Please include NEAT work in order to get a good review.
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Use either the traditional method or P-value method as indicated. Identify the null and alternative hypothesis, test statistic, critical value(s), or p-value, or range of p-values as appropriate. Also, state the final conclusion that addresses the orignal claim.
A light bulb manufacturer advertisers that the average life for its lightbulbs is 900 hours. A random sample of 15 of its light bulbs resulted in the following lives in hours (see table below)
995, 590, 510, 539, 739, 917, 571, 555, 916, 728, 664, 693, 708, 887, 849.
At the 10% significance level, test the claim that the sample is from a population with the mean life of 900 hours.
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Please include NEAT work in order to get a good review.
Assume that a simple random...
7. Assume that a simple random sample has been selected from a normally distrib and test...
7. Assume that a simple random sample has been selected from a normally distrib and test the given claim. Use cither the traditional method or P-value method as indicato been selected from a normally distributed population e indicated. Identify the null and alternative hypotheses, test statistic, critical value(s) or P-value (or range of P-values) as appropriate, and state the final conclusion that addresses the original claim. A light-bulb manufacturer advertises that the averace life for its light bulbs is 900...
8) A light-bulb manufacturer advertises that the averge life for its light bulbs random sample of...
8) A light-bulb manufacturer advertises that the averge life for its light bulbs random sample of 15 of its light bulbs resuted in the following tives in Use Sample Standard Deviatlon hours 995 590 510 530 739 917 571 555 916 728 664 693 708 887 84 test the claim that the sample is from a population with a mean life of 900 hours Use the P.value method of testing Find t Assume that a simple P-value, critical value(s), and...
question 2-c and 2-d 2 .c) Test the given hypothesis. Assume that the population is normally...
question 2-c and 2-d
2 .c) Test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected. A manufacturer uses a new production method to produce steel rods. A random sample of 17 steel rods resulted in lengths with a standard deviation of 4.7 cm. At the 0.10 significance level, test the claim that the new production method has lengths with a standard deviation different from 3.5 cm, which was the standard...
Preliminary data analyses indicate that it is reasonable to use at test to carry out the...
Preliminary data analyses indicate that it is reasonable to use at test to carry out the specified hypothesis test. Perform the t-test using the critical value approach. A light bulb manufacturer advertises that the average life for its light bulbs is 900 hours. A random sample of 15 of its light bulbs resulted in the following lives in hours. 995 590 510 539 739 917 571 555 916 728 664 093 708 87349 At the 10% significance level do the...
1. When testing gas pumps for accuracy, fuel-quality enforcement specialists test pumps and found that 1346...
1. When testing gas pumps for accuracy, fuel-quality enforcement specialists test pumps and found that 1346 of them were not pumping accurately (within 3.3 ox when 5 gal is pumped), and 5612 pumps were accurate. Use a 0.01 significance level to test the claim of an industry representative that less than 20% of the pumps are inaccurate. Use a test for a population proportion. 2. In 1997, a survey of 820 households showed that 144 of them use email. Use...
Please answer the marked questions.......... Please show your work............. that all young adult men is greater...
Please answer the marked questions..........
Please show your work.............
that all young adult men is greater the IC than 50 min d the 65 74 66 37 45 68 64 50 48 65 58 55 52 63 59 57 74 65 the 11.38 1138 The club professional at a difficul that his course is so tough that t course boasts average golfer loses a dozen or more golf balls d ng a round of golf. A dubious golfer sets out...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Provide an appropriate response. 1) Find the critical value,te for 0.99 and n-10. A) 3.250 B) 3.169 1.833 D) 2.262 2) Find the critical value to forc=0.95 and n=16. A) 2.947 B) 2.602 2120 D) 2.131 3) Find the value of E, the margin of error, for A) 1.69 B) 0.42 0.99, n=16 and s=2.6. C)...
7. Assume that a simple random sample has been selected from a normally distrib and test the given claim. Use cither the traditional method or P-value method as indicato been selected from a normally distributed population e indicated. Identify the null and alternative hypotheses, test statistic, critical value(s) or P-value (or range of P-values) as appropriate, and state the final conclusion that addresses the original claim. A light-bulb manufacturer advertises that the averace life for its light bulbs is 900...
8) A light-bulb manufacturer advertises that the averge life for its light bulbs random sample of 15 of its light bulbs resuted in the following tives in Use Sample Standard Deviatlon hours 995 590 510 530 739 917 571 555 916 728 664 693 708 887 84 test the claim that the sample is from a population with a mean life of 900 hours Use the P.value method of testing Find t Assume that a simple P-value, critical value(s), and...
question 2-c and 2-d
2 .c) Test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected. A manufacturer uses a new production method to produce steel rods. A random sample of 17 steel rods resulted in lengths with a standard deviation of 4.7 cm. At the 0.10 significance level, test the claim that the new production method has lengths with a standard deviation different from 3.5 cm, which was the standard...
Preliminary data analyses indicate that it is reasonable to use at test to carry out the specified hypothesis test. Perform the t-test using the critical value approach. A light bulb manufacturer advertises that the average life for its light bulbs is 900 hours. A random sample of 15 of its light bulbs resulted in the following lives in hours. 995 590 510 539 739 917 571 555 916 728 664 093 708 87349 At the 10% significance level do the...
Please answer the marked questions..........
Please show your work.............
that all young adult men is greater the IC than 50 min d the 65 74 66 37 45 68 64 50 48 65 58 55 52 63 59 57 74 65 the 11.38 1138 The club professional at a difficul that his course is so tough that t course boasts average golfer loses a dozen or more golf balls d ng a round of golf. A dubious golfer sets out...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Provide an appropriate response. 1) Find the critical value,te for 0.99 and n-10. A) 3.250 B) 3.169 1.833 D) 2.262 2) Find the critical value to forc=0.95 and n=16. A) 2.947 B) 2.602 2120 D) 2.131 3) Find the value of E, the margin of error, for A) 1.69 B) 0.42 0.99, n=16 and s=2.6. C)...
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