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Should study per unit is show the Yesulls SndlodlAsime ontstud 12.2.3.0.84.1.280.8.0.5083.81273 What can be concluded at the 0.05 level of significance? a. For this study, we should select an answer. b. The null and alternative hypotheses would be: Ho: Select an answer. H: Select an answer. The test statistic. d. The p-value = (Please show your answer to 4 decimal places). The p-value is a. f. Based on this, we should select an answer. The null hypothesis. g. Thus, the final conclusion is that significantly more than 2 at 0.05. So there is students ts more than 2. O The data suggest that the population mean study time per unit for statistics students is not significantly more than 2 at 0.05. So there is sufficient evidence to conclude that the population mean study time per unit for statistics students is more than 2. O The data suggest the population mean is not oeanth t 0.05. So there is sufficient evidence to conclude that the per unit for statistics students is equal to 2. h. Interpret the p-value in the context of the study. These 12 statistics students would be greater than 2. Students is greater than 2. O f the population mean study time per unit for statistics students would be great. O There is a 46.58968707 chance of type. O There is a 5% chance that students just don't study at all, so there is no point to this survey. O There is a 5% chance that the population mean study more than -2. per unit for statistics students is. Concluding that the population mean study time per unit for statistics students is more than 2. Falsely concluding that the population mean study time per unit for statistics students is equal to 2.

          Should study per unit is
show the Yesulls SndlodlAsime
ontstud
12.2.3.0.84.1.280.8.0.5083.81273 What can be concluded at the 0.05 level of significance?
a. For this study, we should select an answer.
b. The null and alternative hypotheses would be:
Ho: Select an answer.
H: Select an answer.
The test statistic.
d. The p-value = (Please show your answer to 4 decimal places). The p-value is a.
f. Based on this, we should select an answer. The null hypothesis.
g. Thus, the final conclusion is that significantly more than 2 at 0.05. So there is students ts more than 2.
O The data suggest that the population mean study time per unit for statistics students is not significantly more than 2 at 0.05. So there is sufficient evidence to conclude that the population mean study time per unit for statistics students is more than 2.
O The data suggest the population mean is not oeanth t 0.05. So there is sufficient evidence to conclude that the per unit for statistics students is equal to 2.
h. Interpret the p-value in the context of the study.
These 12 statistics students would be greater than 2.
Students is greater than 2. O f the population mean study time per unit for statistics students would be great.
O There is a 46.58968707 chance of type.
O There is a 5% chance that students just don't study at all, so there is no point to this survey.
O There is a 5% chance that the population mean study more than -2. per unit for statistics students is.
Concluding that the population mean study time per unit for statistics students is more than 2.
Falsely concluding that the population mean study time per unit for statistics students is equal to 2.
        
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should study per unit is show the yesulls sndlodlasime ontstud 1223084128080508381273 what can be concluded at the005 level of significance afor this study we should sselect an anwer bthe nu 21729

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Elementary Statistics a Step by Step Approach
Elementary Statistics a Step by Step Approach
Allan G. Bluman 9th Edition
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Should study per unit is show the Yesulls SndlodlAsime ontstud 12.2.3.0.84.1.280.8.0.5083.81273 What can be concluded at the 0.05 level of significance? a. For this study, we should select an answer. b. The null and alternative hypotheses would be: Ho: Select an answer. H: Select an answer. The test statistic. d. The p-value = (Please show your answer to 4 decimal places). The p-value is a. f. Based on this, we should select an answer. The null hypothesis. g. Thus, the final conclusion is that significantly more than 2 at 0.05. So there is students ts more than 2. O The data suggest that the population mean study time per unit for statistics students is not significantly more than 2 at 0.05. So there is sufficient evidence to conclude that the population mean study time per unit for statistics students is more than 2. O The data suggest the population mean is not oeanth t 0.05. So there is sufficient evidence to conclude that the per unit for statistics students is equal to 2. h. Interpret the p-value in the context of the study. These 12 statistics students would be greater than 2. Students is greater than 2. O f the population mean study time per unit for statistics students would be great. O There is a 46.58968707 chance of type. O There is a 5% chance that students just don't study at all, so there is no point to this survey. O There is a 5% chance that the population mean study more than -2. per unit for statistics students is. Concluding that the population mean study time per unit for statistics students is more than 2. Falsely concluding that the population mean study time per unit for statistics students is equal to 2.
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According to the Carnegie unit system, the recommended number of hours students should study per unit is 2. Are statistics students' study hours less than the recommended number of hours per unit? The data show the results of a survey of 16 statistics students who were asked how many hours per unit they studied. Assume a normal distribution for the population. 1.7, 1.6, 0.5, 3.3, 1.1, 2.2, 0.7, 0, 1.3, 2.5, 0, 3.3, 3.3, 0.4, 2, 0.8 What can be concluded at the α = 0.10 level of significance? For this study, we should use t-test for a population mean. The null and alternative hypotheses would be: H0: μ = 2 H1: μ < 2 The test statistic t = _______ (please show your answer to 3 decimal places.) The p-value = ______ (Please show your answer to 4 decimal places.) The p-value is ≤ α Based on this, we should reject the null hypothesis. Thus, the final conclusion is that the data suggest the population mean is significantly less than 2 at α = 0.10, so there is sufficient evidence to conclude that the population mean study time per unit for statistics students is less than 2. Interpret the p-value in the context of the study. There is a 6.5241% chance that if the population mean study time per unit for statistics students is 2 and if you survey another 16 statistics students, then there would be a sample mean for these 16 statistics students that is less than 1.54. ii. Interpret the level of significance in the context of the study. There is a 10% chance that we would end up falsely concluding that the population mean study time per unit for statistics students is less than 2.

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The mean number of eggs per person eaten in the United States is 267. Do college students eat less eggs than the average American? The 54 college students surveyed averaged 256 eggs per person and their standard deviation was 85.7. What can be concluded at the α = 0.01 level of significance? a. For this study, we should use [Select an answer] b. The null and alternative hypotheses would be: H0: [Select an answer] H1: [Select an answer] c. The test statistic (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is α f. Based on this, we should [Select an answer] the null hypothesis. g. Thus, the final conclusion is that ... ○ The data suggest that the populaton mean is significantly less than 267 at α = 0.01, so there is statistically significant evidence to conclude that the population mean number of eggs consumed by college students per year is less than 267. ○ The data suggest that the population mean is not significantly less than 267 at α = 0.01, so there is statistically insignificant evidence to conclude that the population mean number of eggs consumed by college students per year is less than 267. ○ The data suggest that the sample mean is not significantly less than 267 at α = 0.01, so there is statistically insignificant evidence to conclude that the sample mean number of eggs consumed by college students per year is less than 256. h. Interpret the p-value in the context of the study. ○ If the population mean number of eggs consumed by college students per year is 267 and if another 54 college students are surveyed then there would be a 17.49264975% chance that the sample mean for these 54 students surveyed would be less than 256. ○ If the population mean number of eggs consumed by college students per year is 267 and if another 54 students are surveyed then there would be a 17.49264975% chance that the population mean number of eggs consumed by college students per year would be less than 267. ○ There is a 17.49264975% chance that the population mean number of eggs consumed by college students per year is less than 267. ○ There is a 17.49264975% chance of a Type I error.

Kari H.

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A professor teaching two large sections of an introductory statistics class believes that students in her first section will study less than the students in her second section for the final exam. She decides to perform a hypothesis test at the 1% significance level to test her claim. She samples 8 students from her first section and 8 students from her second section. She records how many minutes each sampled student studied for the final exam. She believes that the number of minutes studied is normally distributed, and that the standard deviations of minutes studied are the same for each section. A summary of the collected data is as follows: mean1 = 254 mean2 = 262 s1 = 35 s2 = 23 n1 = 8 n2 = 8 Here, mean1 and mean2 are the sample means of the first and second section respectively, s1 and s2 are their standard deviations, and n1 and n2 are their sample sizes. a. Specify the null and alternative hypotheses to test whether students in the first section study less than students in the second section. multiple choice 1 H0: μ1 - μ2 = 0; HA: μ1 - μ2 > 0 H0: μ1 - μ2 = 0; HA: μ1 - μ2 ≠ 0 H0: μ1 - μ2 = 0; HA: μ1 - μ2 < 0 b. Calculate the value of the t or z statistic. c. Find the p-value. p-value: d. Based on the data, should the professor conclude that students in Section 1 study less on average than students in Section 2? multiple choice 2 Yes, since the value of the p-value is less than the significance level. No, since the value of the p-value is less than the significance level. No, since the value of the p-value is greater than the significance level. Yes, since the value of the p-value is greater than the significance level.

James K.


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Transcript

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00:01 From the given data mean x bar is equal to summation x bar n this is equal to 1 .3 the standard deviation this is equal to 1 .0799 the sample size n equal to 16 and the significance level this is equal to 0 .10 so…
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