Homework Answers
| SUMMARY OUTPUT | |||||
| Regression Statistics | |||||
| Multiple R | 0.242030268 | ||||
| R Square | 0.058578651 | ||||
| Adjusted R Square | -0.013838376 | ||||
| Standard Error | 18.3870423 | ||||
| Observations | 15 | ||||
| ANOVA | |||||
| df | SS | MS | F | Significance F | |
| Regression | 1 | 273.4780189 | 273.4780189 | 0.808907151 | 0.384800632 |
| Residual | 13 | 4395.083221 | 338.0833247 | ||
| Total | 14 | 4668.56124 | |||
| Coefficients | Standard Error | t Stat | P-value | Lower 95% | |
| Intercept | 81.14611321 | 32.31456248 | 2.511131421 | 0.026036266 | 11.33474528 |
| hours | -0.556415094 | 0.618656479 | -0.899392657 | 0.384800632 | -1.892941161 |
95 % confidence interval
= (-1.89294,0.78011)
option C) is correct
fill -1.89294 < beta_1 < 0.78011
Please rate
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-08 (Round to two decimal places as needed.) State the conclusion at α = 0.05 Since...
1. Identify the test statistic. Z=_____(Round to two decimal places as needed.) Identify the P-value. P=_____(Round...
1.
Identify the test
statistic.
Z=_____(Round to two decimal places as needed.)
Identify the P-value.
P=_____(Round to three decimal places as needed.)
What is the conclusion based on the hypothesis test?
The P-value is (1)_____ the significance level of α=0.05, so
(2)_____ the null hypothesis. There (3)_____ evidence to warrant
rejection of the claim that women and men have equal success in
challenging calls.
b. Test the claim by constructing an appropriate confidence
interval.
The 95% or 99% confidence interval...
A. B. The 95% confidence interval is _____ <μd< _____. (Round to two decimal places as...
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...
A. B. 2. The test statistic,is ______ (Round to two decimal places as needed.) 3. The P-value is ______ (Round t...
A.
B.
2. The test statistic,is ______
(Round to two decimal places as needed.)
3. The P-value is ______
(Round to three decimal places as needed.)
4. State the conclusion for the test.
________________ the null hypothesis. There ______ sufficient
evidence to support the claim that those treated with magnets have
a greater mean reduction in pain than those given a sham
treatment.
5. Is it valid to argue that magnets might appear to be
effective if the sample sizes...
A. B. 2. Identify the test statistic. (Round to two decimal places as needed.) 3. Use...
A.
B.
2. Identify the test statistic. (Round to two decimal places as
needed.)
3. Use technology to identify the P-value. (Round to three
decimal places as needed.)
4. What is the conclusion for this hypothesis test?
A. Fail to reject H 0. There is insufficient evidence to support
the claim that the treatment group has errors that vary
significantly more than the errors of the placebo group.
B. Reject H 0. There is insufficient evidence to support the claim...
*** round 3 decimal places as needed **** IGNORE FIRST PICTURE. need anwsers for n=144 n=576...
*** round 3 decimal places as needed ****
IGNORE FIRST PICTURE. need anwsers for
n=144
n=576
The mean and standard deviation of a random sample of n measurements are equal to 34.4 and 3.8, respectively. a. Find a 99% confidence interval for win81. b. Find a 99% confidence interval for if n = 324 c. Find the widths of the confidence intervals found in parts a and b. What is the effect on the width of a confidence interval of...
tound to 3 decimal places as needed pls This Question: 1 pt 18 of 24 16...
tound to 3 decimal places as needed pls
This Question: 1 pt 18 of 24 16 completo) This Test: 24 pts possible Use the given data set to complete parts (a) through (c) below. (Us 0.05) x 10 B 13 9 7.47 6.78 12.75 7.11 11 781 14 BR) 6 6.08 & 539 7 12 8.15 574 Click here to view a table of critical values for the correlation coefficient a. Construct a scatterplot. Choose the correct graph below OD...
please round to 3 decimal places This Question: 1 pt 2 of 24 (0 completo This...
please round to 3 decimal places
This Question: 1 pt 2 of 24 (0 completo This Test: 24 pts possible Use the sample data and confidence level given below to complete parts (a) through (d). A research Institute poil asked respondents if they felt vulnerable to identity theft. In the pol, n 100 and x=570 who said yes. Use a 96% confidence level Click the icon to view a table of z scores a) Find the best point estimate of...
(a) Determine the test statistic (t = ?). Round to two decimal places as needed. (b)...
(a) Determine the test statistic (t =
?). Round to two decimal places as needed.
(b) Construct a 90% confidence interval for
μcommunity college − μno transfer to
approximate the mean additional time it takes to complete a
bachelor's degree if you begin in community college. The bounds of
a (1 − α) • 100% confidence interval about μ1 −
μ2 can be found using the following formulas, where
tα/2 is the critical value. Round to six decimal places
as...
Use the data to calculate the sample variance, s. (Round your answer to five decimal places.)...
Use the data to calculate the sample variance, s. (Round your answer to five decimal places.) n = 10: 19.0, 9.7, 11.9, 8.8, 10.4, 8.8, 7.1, 12.3, 15.1, 12.6 Construct a 95% confidence interval for the population variance, oʻ. (Round your answers to two decimal places.) x to Test Ho: 02.9 versus H,:o? > 9 using a = 0.05. State the test statistic (Round your answer to two decimal places.) State the rejection region. (If the test is one-tailed, enter...
thank you!!!!! please round to two decimal places as needed! FX=73, o = 10, and n=65,...
thank you!!!!!
please round to two decimal places as needed!
FX=73, o = 10, and n=65, construct a 99% confidence interval estimate of the population mean, sps (Round to two decimal places as needed.) Enter your answer in each of the answer boxes
1.
Identify the test
statistic.
Z=_____(Round to two decimal places as needed.)
Identify the P-value.
P=_____(Round to three decimal places as needed.)
What is the conclusion based on the hypothesis test?
The P-value is (1)_____ the significance level of α=0.05, so
(2)_____ the null hypothesis. There (3)_____ evidence to warrant
rejection of the claim that women and men have equal success in
challenging calls.
b. Test the claim by constructing an appropriate confidence
interval.
The 95% or 99% confidence interval...
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...
A.
B.
2. The test statistic,is ______
(Round to two decimal places as needed.)
3. The P-value is ______
(Round to three decimal places as needed.)
4. State the conclusion for the test.
________________ the null hypothesis. There ______ sufficient
evidence to support the claim that those treated with magnets have
a greater mean reduction in pain than those given a sham
treatment.
5. Is it valid to argue that magnets might appear to be
effective if the sample sizes...
A.
B.
2. Identify the test statistic. (Round to two decimal places as
needed.)
3. Use technology to identify the P-value. (Round to three
decimal places as needed.)
4. What is the conclusion for this hypothesis test?
A. Fail to reject H 0. There is insufficient evidence to support
the claim that the treatment group has errors that vary
significantly more than the errors of the placebo group.
B. Reject H 0. There is insufficient evidence to support the claim...
*** round 3 decimal places as needed ****
IGNORE FIRST PICTURE. need anwsers for
n=144
n=576
The mean and standard deviation of a random sample of n measurements are equal to 34.4 and 3.8, respectively. a. Find a 99% confidence interval for win81. b. Find a 99% confidence interval for if n = 324 c. Find the widths of the confidence intervals found in parts a and b. What is the effect on the width of a confidence interval of...
tound to 3 decimal places as needed pls
This Question: 1 pt 18 of 24 16 completo) This Test: 24 pts possible Use the given data set to complete parts (a) through (c) below. (Us 0.05) x 10 B 13 9 7.47 6.78 12.75 7.11 11 781 14 BR) 6 6.08 & 539 7 12 8.15 574 Click here to view a table of critical values for the correlation coefficient a. Construct a scatterplot. Choose the correct graph below OD...
please round to 3 decimal places
This Question: 1 pt 2 of 24 (0 completo This Test: 24 pts possible Use the sample data and confidence level given below to complete parts (a) through (d). A research Institute poil asked respondents if they felt vulnerable to identity theft. In the pol, n 100 and x=570 who said yes. Use a 96% confidence level Click the icon to view a table of z scores a) Find the best point estimate of...
(a) Determine the test statistic (t =
?). Round to two decimal places as needed.
(b) Construct a 90% confidence interval for
μcommunity college − μno transfer to
approximate the mean additional time it takes to complete a
bachelor's degree if you begin in community college. The bounds of
a (1 − α) • 100% confidence interval about μ1 −
μ2 can be found using the following formulas, where
tα/2 is the critical value. Round to six decimal places
as...
Use the data to calculate the sample variance, s. (Round your answer to five decimal places.) n = 10: 19.0, 9.7, 11.9, 8.8, 10.4, 8.8, 7.1, 12.3, 15.1, 12.6 Construct a 95% confidence interval for the population variance, oʻ. (Round your answers to two decimal places.) x to Test Ho: 02.9 versus H,:o? > 9 using a = 0.05. State the test statistic (Round your answer to two decimal places.) State the rejection region. (If the test is one-tailed, enter...
thank you!!!!!
please round to two decimal places as needed!
FX=73, o = 10, and n=65, construct a 99% confidence interval estimate of the population mean, sps (Round to two decimal places as needed.) Enter your answer in each of the answer boxes
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