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36) Test the...
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...
3, Hypothesis testing for the mean (gis known) Find the P-value for a two-tailed hypothesis test with a standardized test statistic of z 1.64. Decide whether to reject Ho when the level of signif...
3, Hypothesis testing for the mean (gis known) Find the P-value for a two-tailed hypothesis test with a standardized test statistic of z 1.64. Decide whether to reject Ho when the level of significance is α a. 0.10. b. Find the P-value for a right-tailed hypothesis test with a standardized test statistic of z 1.64. Decide whether to reject Ho when the level of significance is a0.10. Homeowners claim that the mean speed of automobiles traveling on their street is...
Assume a normal distribution and use a hypothesis test to test the given claim According to...
Assume a normal distribution and use a hypothesis test to test the given claim According to city reports, it was found that the mean age of the prison population in the city was 26 years. He obtains a random samplo of 25 prisoners and finds a mean age of 24.4 years and a standard 20. years. Marc wants to test the claim that the mean age of the prison population in his city is less than 26 deviation of 9.2...
--------A sample of 36 observations is selected from a normal population. The sample mean is 34,...
--------A sample of 36 observations is selected from a normal population. The sample mean is 34, and the population standard deviation is 5. Carry out a hypothesis test (with a level of significance α of 0.05) of the null hypothesis H0: µ ≥ 35 using the 6-step procedure ---------Suppose that someone claims that the mean number of sick days taken by U.S. employees is 5.1. You decide to investigate that claim and take a representative sample of 87 U.S. employees...
Test the claim about the population mean μ at the level of significance α. Assume the...
Test the claim about the population mean μ at the level of significance α. Assume the population is normally distributed. Claim: μ ≠ 33; α = 0.05; σ = 2.7 Sample statistics: = 32.1, n = 35
You wish to test the following claim ( H a ) at a significance level of...
You wish to test the following claim ( H a ) at a significance level of α = 0.02 . H o : μ = 51.6 H a : μ < 51.6 You believe the population is normally distributed and you know the population standard deviation is σ = 8.7 . You obtain a sample mean of M = 49.3 for a sample of size n = 51 . What is the test statistic for this sample? (Report answer accurate...
You wish to test the following claim (Ha) at a significance level of α 0.01. Ha:...
You wish to test the following claim (Ha) at a significance level of α 0.01. Ha: μ > 85.6 and you know the standard deviation is σ 18.5. You obtain a sample mean of M- 87.2 for a sample of size n-63 What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic- What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value- The p-value is.. O less than...
You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05. Ho:μ≤86.2Ho:μ≤86.2 Ha:μ>86.2Ha:μ>86.2...
You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05. Ho:μ≤86.2Ho:μ≤86.2 Ha:μ>86.2Ha:μ>86.2 You believe the population is normally distributed and you know the standard deviation is σ=16.8σ=16.8. You obtain a sample mean of ¯x=89x¯=89 for a sample of size n=72n=72. What is the test statistic for this sample? (Report the answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The...
*** Please use TI-83+ calculator to solve this problem *** You wish to test the following...
*** Please use TI-83+ calculator to solve this problem ***
You wish to test the following claim (HaHa) at a significance
level of α=0.02α=0.02.
Ho:p1=p2Ho:p1=p2
Ha:p1<p2Ha:p1<p2
You obtain 465 successes in a sample of size n1=592n1=592 from the
first population. You obtain 593 successes in a sample of size
n2=687n2=687 from the second population. For this test, you should
NOT use the continuity correction, and you should use the normal
distribution as an approximation for the binomial
distribution.
What is...
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...
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...
3, Hypothesis testing for the mean (gis known) Find the P-value for a two-tailed hypothesis test with a standardized test statistic of z 1.64. Decide whether to reject Ho when the level of significance is α a. 0.10. b. Find the P-value for a right-tailed hypothesis test with a standardized test statistic of z 1.64. Decide whether to reject Ho when the level of significance is a0.10. Homeowners claim that the mean speed of automobiles traveling on their street is...
Assume a normal distribution and use a hypothesis test to test the given claim According to city reports, it was found that the mean age of the prison population in the city was 26 years. He obtains a random samplo of 25 prisoners and finds a mean age of 24.4 years and a standard 20. years. Marc wants to test the claim that the mean age of the prison population in his city is less than 26 deviation of 9.2...
You wish to test the following claim (Ha) at a significance level of α 0.01. Ha: μ > 85.6 and you know the standard deviation is σ 18.5. You obtain a sample mean of M- 87.2 for a sample of size n-63 What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic- What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value- The p-value is.. O less than...
*** Please use TI-83+ calculator to solve this problem ***
You wish to test the following claim (HaHa) at a significance
level of α=0.02α=0.02.
Ho:p1=p2Ho:p1=p2
Ha:p1<p2Ha:p1<p2
You obtain 465 successes in a sample of size n1=592n1=592 from the
first population. You obtain 593 successes in a sample of size
n2=687n2=687 from the second population. For this test, you should
NOT use the continuity correction, and you should use the normal
distribution as an approximation for the binomial
distribution.
What is...
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