# A. B. The​ 95% confidence interval is _____ <μd< _____. ​(Round to two decimal places as​...

###### Question:

A.

B.

The​ 95% confidence interval is _____ <μd< _____.

​(Round to two decimal places as​ needed.)

What does the confidence interval suggest about farmer​ Joe's claim that type 1 seed is better than type 2​ seed?

A. Because the confidence interval only includes positive values and does not include ​zero, there

is not sufficient evidence to support farmer​ Joe's claim.

B. Because the confidence interval includes ​zero, there is sufficient evidence to support farmer​ Joe's claim.

C. Because the confidence interval includes ​zero, there is not sufficient evidence to support farmer​ Joe's claim.

D. Because the confidence interval only includes positive values and does not include ​zero, there is sufficient evidence to support farmer​ Joe's claim

C.

1. Find the value of the test statistic=_____ (Round to three decimal places)

2. Identify the critical​ value(s). Select the correct choice below and fill the answer box within your choice.

​(Round to three decimal places as​ needed.)

A) The critical values are t= +/-____

B) The critical value is t=______.

3. State the result of the test. Choose the correct answer below.

A) There is sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions appear to be affected.

B) There is not sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions do not appear to be affected.

C) There is not sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions appear to be affected.

D) There is sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions do not appear to be affected.

D.

W 9.3.9 Question Help O Several students were tested for reaction times in thousandths of a second) using their right and left hands. (Each value is the elapsed time between the release of a strip of paper and the instant that it is caught by the subject.) Results from five of the students are included in the graph to the right. Use a 0.02 significance level to test the claim that there is no difference between the reaction times of the right and left hands. Click the icon to view the reaction time data table. Left Hand 140+ 100 140 Richt Hand 780 What are the hypotheses for this test? mean of the differences of the right and left hand reaction times. Let Hy be the Ho Hd = 0 Hi Ho 0 What is the test statistic? - (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. parts 2 remaining Clear All Check Answer
x 9.3.9 Question Help Several students were tested for reaction times in thousandths of a second) using their right and left hands. (Each value is the elapsed time between the release of a strip of paper and the instant that it is caught by the subject.) Results from five of the students are included in the graph to the right. Use a 0.02 significance level to test the claim that there is no difference between the reaction times of the right and left hands. B Click the icon to view the re i Reaction Time Data Table -X e Hand 1407 100 780 140 Right Hand What are the hypotheses for this Right Hand Left Hand mean of the d 131 140 Let Ho be the Ho Hd = 0 Hi Ho 0 118 154 154 170 187 176 166 What is the test statistic? 193 ta (Round to three decimal Print Done Enter your answer in the answer box and then click Check Answer. parts 2 remaining Clear All Check Answer
What is the test statistic? ta (Round to three decimal places as needed.) Identify the critical value(s). Select the correct choice below and fill the answer box within your choice. (Round to three decimal places as needed.) O A. The critical value ist= . OB. The critical values arett What is the conclusion? There enough evidence to warrant rejection of the claim that there is between the reaction times of the right and left hands.
9.3.14-T Is Question Help O The data below are yields for two different types of corn seed that were used on adjacent plots of land. Assume that the data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the difference between type 1 and type 2 yields. What does the confidence interval suggest about farmer Joe's claim that type 1 seed is better than type 2 soed? Type 1 20561931 2115 2469 2166 1900 2146 1458 Type 2 20951958 2057 2431 2185 1923 2116 1489 In this example, He is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the type 1 seed yield minus the type 2 seed yield. The 95% confidence interval is < < (Round to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. 1 pertaining Clear All Check Answer
% 9.3.12 Is Question Help Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Use a 0.05 significance level to test the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motor vehicle crashes are not affected. 9 7 4 Friday the 6th: Friday the 13th: 12 15 12 11 4 12 14 14 6 What are the hypotheses for this test? Let to be the mean of the differences in the numbers of hospital admissions resulting from motor vehicle crashes for the population of all pairs of data. Hoi Hd = 0 H:Hd 70 Find the value of the test statistic. t- (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 2 parts 2 remaining Clear All Check Answer
% 9.3.10-T Question Help Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.05 significance level to test for a difference between the measurements from the two arms. What can be concluded? Right arm 143 183 151 176 134 182 133 155 135 134 In this example, He is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: 1970 H:Ha=0 OC. HpH = 0 H1:19 > 0 B. Hot Hd = 0 H:H70 OD. Ho Hd = 0 H:100 Identify the test statistic, t= (Round to two decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 2 parts 2 remaining Clear All Check Answer
Identify the test statistic (Round to two decimal places as needed.) Identify the P-value P-values (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? Since the P-value is than the significance level the nul hypothesis. There sufficient evidence to support the claim of a difference in measurements between the two arms

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