1.)_Do we reject the null of hypothesis ? 2.) State your conclusion in the form of a full statement ''With a_______level of significance, there is/is not enough of evidence to support the claim that____''
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1.)_Do we reject the null of hypothesis ?
2.) State your conclusion in the form of a full statement
''With a_______level of significance, there is/is not enough of evidence to support the claim that____''
We have given that:
Level of significance===0.05
Sample sizes:
n1=10,n2=13
df=n1+n2- 2=10+13-2=21
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- The accompanying table lists distances (mm) between pupils of randomly selected U.S. Army personnel collected as part of a large reputable study. Results from two-way analysis of variance are also shown. Use the displayed results and use a 0.05 significance level. What do you conclude? A Click the icon to view the data and two-way analysis of variance results. First test for an interaction between the two factors. Determine the null and alternative hypotheses. Choose the correct answer below. - X Data and Two-Way ANOVA Results O A. Ho: Distances between pupils are affected by an interaction between gender and handedness. H: Distances between pupils are not affected by an interaction between gender and handedness. Right-Handed 64 65 60 59 57 71 64 61 70 64 65 62 67 69 70O Left-Handed O O B. Ho: Distances between pupils are not affected by handedness. H,: Distances between pupils are affected by handedness. Female Male 68 68 65 66 64 O C. Ho: Distances between pupils are not affected by…Data is collected to compare two different types of batteries. We measure the time to failure of 10 batteries of each type. Battery A: mean= 8.65 Battery B: mean=11.23 Assume equal variances. Perform a .05 level test to determine if Battery B outlasts Battery A by more than 2 hours. Use Sp= .88569 What is the Chart Value for this problem?The accompanying table lists distances (mm) between pupils of randomly selected U.S. Army personnel collected as part of a large reputable study. Results from two-way analysis of variance are also shown. Use the displayed results and use a 0.05 significance level. What do you conclude? Click the icon to view the data and two-way analysis of variance results. First test for an interaction between the two factors. Determine the null and alternative hypotheses. Choose the correct answer below. A. Ho: Distances between pupils are not affected by an interaction between gender and handedness. H₁: Distances between pupils are affected by an interaction between gender and handedness. B. Ho: Distances between pupils are not affected by gender. H₁: Distances between pupils are affected by gender. C. Ho: Distances between pupils are not affected by handedness. H₁: Distances between pupils are affected by handedness. D. Ho: Distances between pupils are affected by an interaction between gender and…
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- Warming and Ice Melt The average depth of theHudson Bay is 305 feet. Climatologists were interestedin seeing if the effects of warming and ice melt wereaffecting the water level. Fifty-five measurements overa period of weeks yielded a sample mean of 306.2 feet.The population variance is known to be 3.57. Can it beconcluded at the 0.05 level of significance that theaverage depth has increased? Is there evidence of whatcaused this to happen?You are testing the claim that having lights on at night increases weight gain (abstract). A sample of 10 mice lived in an environment with bright light on all of the time and 8 mice who lived in an environment with a normal light/dark cycle is given below. Test the claim using a 6% level of significance. Assume the population variances are unequal and that the weight changes are normally distributed. Give answers to 3 decimal places. Data available at StatKey, choose Mice Wgt Gain-2e data set Light (x1x1) Dark (x2x2) 1.71 2.27 4.67 2.53 4.99 2.83 5.33 4 5.43 4.21 6.94 4.6 7.15 5.95 9.17 6.52 10.26 11.67 H0: μ₁ = μ₂Ha: μ₁ > μ₂ Based on the hypotheses, find the following:Test Statistic = __________ (Hint: difference in means from Ha)p-value = ___________________You are testing the claim that having lights on at night increases weight gain (abstract). A sample of 10 mice lived in an environment with bright light on all of the time and 8 mice who lived in an environment with a normal light/dark cycle is given below. Test the claim using a 6% level of significance. Assume the population variances are unequal and that the weight changes are normally distributed. Give answers to 3 decimal places. Data available at StatKey, choose Mice Wgt Gain-2e data set Light (1) 1.71 4.67 4.99 5.33 5.43 6.94 7.15 9.17 10.26 11.67 Dark (₂) 2.27 2.53 2.83 4 What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols in the order they appear in the problem. Ho: Select an answer ✓ ? ✓ Test Statistic = 4.21 4.6 5.95 6.52 p-value= Ha: Select an answer ✓ Based on the hypotheses, find the following: Select an answer ✓ ? ✓ Select an answer ✓ (Hint: difference in means from Ha)