Homework Answers
We use the following formula :
test statistic = t = ( 2.16 - 1.76 ) / (( 0.392 / 40) + (0.342 / 35 ))0.5
t = 4.75
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ork Due in 14 hour Calculate the test-statistic, t with the following information. n? 40, ?-2.16,...
And can you explain how to work them? Can you work them with a calculator? Homework...
And can you explain how to work them? Can you work them with a
calculator?
Homework Section 9.3 and 94X Linstructure.com/courses/31132passignments/44778757module tem id-8330429 Submit Question 6. Points possible: 1 Unlimited attempts Score on last attempt: 1. Score in gradebook: 1 Message instructor about this question You are performing a right-tailed test If α = .002, find the critical value, to three decimal places. Submit Question 7. Points possible: 1 Unlimited attempts. Message instructor about this question Your claim results in...
You are performing a right-tailed test If a = .001, find the critical value, to three...
You are performing a right-tailed test If a = .001, find the critical value, to three decimal places. Points possible: 1 Unlimited attempts. Score on last attempt: 0. Score in gradebook: 0 Message instructor about this question Submit
z practice: use Excei! Due Thu 05/09/2019 11: Liquid leaked from a damaged tank at a rate of r(t) liters per hour. The rate decreased as time passed and values of rate at three-hour time interval...
z practice: use Excei! Due Thu 05/09/2019 11: Liquid leaked from a damaged tank at a rate of r(t) liters per hour. The rate decreased as time passed and values of rate at three-hour time intervals are shown in the table t (hr) r (L/h) 8.2 7.8 7.5 7.2 6.9 12 6.6 15 Find lower and upper estimates for the total amount of liquid that leaked out liters lower estimate- liters upper estimate- Get help: Video License Points possible: 1...
Due Sun 02/03/2019 10 Ages Number of students 15-18 19-22 23-26 10 10 31-34 35-38 Find...
Due Sun 02/03/2019 10 Ages Number of students 15-18 19-22 23-26 10 10 31-34 35-38 Find the relative frequency for the class with lower class limit 31 Relative Frequency Give your answer as a percent, rounded to two decimal places Hint: Relative Frequency Textbook Pages Points possible: 1 This is attempt 1 of 3. Message instructor about this question Submit MacBoo F8 4) F1O 5
please calculate the regressional model, the test hypothesis, the rejection region for the test statistic t,...
please calculate the regressional model, the test hypothesis,
the rejection region for the test statistic t, the test statistic
t, and the percentage of total variation
Help A regional retailer would like to determine if the variation in average monthly store sales can, in part, be explained by the size of the store measured in square foot. A random sample of 21 stores was selected and the store size and average monthly sales were computed Complete parts a through c....
Due Sun 05/31/2010 11:59 pm You want to obtain a sample to estimate a population proportion....
Due Sun 05/31/2010 11:59 pm You want to obtain a sample to estimate a population proportion. At this point in time, you have to be for the population proportion. You would like to be 99.9% confident that you esimate is within 0.25 population proportion. How large of a sample size is required? Hint: Shouldn't the answer be a WHOLE NUMBER Do not round mid-calculation. However, use a critical value accurate to three decimal places Points possible: 1 Unlimited attempts. Score...
Tocncy Tables Due Sun 02/03/2019 10:00 am Score on last attempt:0 out of Score in gradebook:0...
Tocncy Tables Due Sun 02/03/2019 10:00 am Score on last attempt:0 out of Score in gradebook:0 out of Try another similar question reattempt last question below, or select another question. Number of students Ages 15-18 19-22 23-26 27-30 31-34 35-38 Find the relative frequency for the class with lower class limit 35 Relative Frequency Give your answer as a percent, rounded to two decimal places Hint: Relative Frequency Textbook Pages Points possible: 1 This 1s attempt 2 of 3. Score...
can some one help me with this and explain the steps for me? I am really...
can some one help me with this and explain the steps
for me? I am really having trouble finding the t value.
Due in 2 hours, 34 minutes. Due Thu 05/31/2018 11:59 pm You measure 36 watermelons' weights, and find they have a mean weight of 77 ounces. Assume the population standard deviation is 2.4 ounces. Based on is, what s the maximal margin o emor associated with a 95% confidence interval for the true population mean watermelon weight. Give...
TUU WISI U test the following claim (H) at a significance level of a = 0.05....
TUU WISI U test the following claim (H) at a significance level of a = 0.05. H:H = 12 H:Hi # 2 You believe both populations are normally distributed, but you do not know the standard deviations for either. However, you also have no reason to believe the variances of the two populations are not equal. You obtain the following two samples of data. Sample #1 Sample #2 87. 165.4 72. 3 80. 2 65 73.5 71.9 78.1 83 71.5...
Due Thu 07/30/2020 11:59 pm 14% of all college students volunteer their time. Is the percentage...
Due Thu 07/30/2020 11:59 pm 14% of all college students volunteer their time. Is the percentage of college students who are volunteers different for students receiving financial aid? of the 385 randomly selected students who receive financial aid, 39 of them volunteered their time. What can be concluded at the a-0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? (please enter a decimal) H: ?...
And can you explain how to work them? Can you work them with a
calculator?
Homework Section 9.3 and 94X Linstructure.com/courses/31132passignments/44778757module tem id-8330429 Submit Question 6. Points possible: 1 Unlimited attempts Score on last attempt: 1. Score in gradebook: 1 Message instructor about this question You are performing a right-tailed test If α = .002, find the critical value, to three decimal places. Submit Question 7. Points possible: 1 Unlimited attempts. Message instructor about this question Your claim results in...
You are performing a right-tailed test If a = .001, find the critical value, to three decimal places. Points possible: 1 Unlimited attempts. Score on last attempt: 0. Score in gradebook: 0 Message instructor about this question Submit
z practice: use Excei! Due Thu 05/09/2019 11: Liquid leaked from a damaged tank at a rate of r(t) liters per hour. The rate decreased as time passed and values of rate at three-hour time intervals are shown in the table t (hr) r (L/h) 8.2 7.8 7.5 7.2 6.9 12 6.6 15 Find lower and upper estimates for the total amount of liquid that leaked out liters lower estimate- liters upper estimate- Get help: Video License Points possible: 1...
Due Sun 02/03/2019 10 Ages Number of students 15-18 19-22 23-26 10 10 31-34 35-38 Find the relative frequency for the class with lower class limit 31 Relative Frequency Give your answer as a percent, rounded to two decimal places Hint: Relative Frequency Textbook Pages Points possible: 1 This is attempt 1 of 3. Message instructor about this question Submit MacBoo F8 4) F1O 5
please calculate the regressional model, the test hypothesis,
the rejection region for the test statistic t, the test statistic
t, and the percentage of total variation
Help A regional retailer would like to determine if the variation in average monthly store sales can, in part, be explained by the size of the store measured in square foot. A random sample of 21 stores was selected and the store size and average monthly sales were computed Complete parts a through c....
Due Sun 05/31/2010 11:59 pm You want to obtain a sample to estimate a population proportion. At this point in time, you have to be for the population proportion. You would like to be 99.9% confident that you esimate is within 0.25 population proportion. How large of a sample size is required? Hint: Shouldn't the answer be a WHOLE NUMBER Do not round mid-calculation. However, use a critical value accurate to three decimal places Points possible: 1 Unlimited attempts. Score...
Tocncy Tables Due Sun 02/03/2019 10:00 am Score on last attempt:0 out of Score in gradebook:0 out of Try another similar question reattempt last question below, or select another question. Number of students Ages 15-18 19-22 23-26 27-30 31-34 35-38 Find the relative frequency for the class with lower class limit 35 Relative Frequency Give your answer as a percent, rounded to two decimal places Hint: Relative Frequency Textbook Pages Points possible: 1 This 1s attempt 2 of 3. Score...
can some one help me with this and explain the steps
for me? I am really having trouble finding the t value.
Due in 2 hours, 34 minutes. Due Thu 05/31/2018 11:59 pm You measure 36 watermelons' weights, and find they have a mean weight of 77 ounces. Assume the population standard deviation is 2.4 ounces. Based on is, what s the maximal margin o emor associated with a 95% confidence interval for the true population mean watermelon weight. Give...
TUU WISI U test the following claim (H) at a significance level of a = 0.05. H:H = 12 H:Hi # 2 You believe both populations are normally distributed, but you do not know the standard deviations for either. However, you also have no reason to believe the variances of the two populations are not equal. You obtain the following two samples of data. Sample #1 Sample #2 87. 165.4 72. 3 80. 2 65 73.5 71.9 78.1 83 71.5...
Due Thu 07/30/2020 11:59 pm 14% of all college students volunteer their time. Is the percentage of college students who are volunteers different for students receiving financial aid? of the 385 randomly selected students who receive financial aid, 39 of them volunteered their time. What can be concluded at the a-0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? (please enter a decimal) H: ?...
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