A recent study claimed that at least 20% of junior high students are overweight. In a...
Homework Answers
Conclusion: There is sufficient evidence to reject the study's claim at 0.05 level of significance
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A recent study claimed that at least 20% of junior high
students are overweight. In a...
A recent study at a local college claimed that the proportion, p, of students who commute...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 275 students at this college is selected, and it is found that 87 commute more than fifteen miles to school, can we reject the college's claim at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below Carry your intermediate computations to at...
answer neatly and correctly please! A recent study at a local college claimed that the proportion,...
answer neatly and correctly
please!
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 270 students at this college is selected, and it is found that 58 commute more than fifteen miles to school, can we reject the college's claim at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below. Carry...
A recent study at a local college claimed that the proportion, p. of students who commute...
A recent study at a local college claimed that the proportion, p. of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 265 students at this college is selected, and it is found that 65 commute more than fifteen miles to school, can we reject the college's claim at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p, of students who commute...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 15%. If a random sample of 275 students at this college is selected, and it is found that 55 commute more than fifteen miles to school, can we reject the college's claim at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p. of students who commute...
A recent study at a local college claimed that the proportion, p. of students who commute more than fifteen miles to school is no more than 15%. If a random sample of 255 students at this college is selected, and it is found that 53 commute more than fifteen miles to school, can we reject the college's claim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p, of students who commute...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 255 students at this college is selected, and it is found that 70 commute more than fifteen miles to school, can we reject the college's claim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles t...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 270 students at this college is selected, and it is found that 71 commute more than fifteen miles to school, can we reject the college's daim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A television documentary on overeating claimed that Americans are about 10 pounds overweight on average (μ)....
A television documentary on overeating claimed that Americans are about 10 pounds overweight on average (μ). To test this claim, 18 randomly selected individuals were examined; their average (x̄) excess weight was found to be 12.4 pounds, and the sample standard deviation (s) was 2.7 pounds. At a significance level of 0.01, is there any reason to doubt the validity of the claimed 10-pound value?
13. A well-known brokerage firm executive claimed that 20% of investors are currently confident of meeting...
13. A well-known brokerage firm executive claimed that 20% of investors are currently confident of meeting their investment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sample of 800 people, 29% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is larger than 20% at the 0.05 significance level. **PLEASE us excel to show work.
Exercises#4 It has been claimed that the mean weight of women students at a college is...
Exercises#4 It has been claimed that the mean weight of women students at a college is 55.5Kg. Professor Ali does not believe the statement and sets out to show the mean weight is not 55.5Kg. To test the claim he collects a random sample of 200 weights from among the women students. A sample means of 54.75kg results. Is this sufficient evidence for Professor Ali to reject the statement? Use α 0.01 and σ 5.5Kg.
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 275 students at this college is selected, and it is found that 87 commute more than fifteen miles to school, can we reject the college's claim at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below Carry your intermediate computations to at...
answer neatly and correctly
please!
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 270 students at this college is selected, and it is found that 58 commute more than fifteen miles to school, can we reject the college's claim at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below. Carry...
A recent study at a local college claimed that the proportion, p. of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 265 students at this college is selected, and it is found that 65 commute more than fifteen miles to school, can we reject the college's claim at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 15%. If a random sample of 275 students at this college is selected, and it is found that 55 commute more than fifteen miles to school, can we reject the college's claim at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p. of students who commute more than fifteen miles to school is no more than 15%. If a random sample of 255 students at this college is selected, and it is found that 53 commute more than fifteen miles to school, can we reject the college's claim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 255 students at this college is selected, and it is found that 70 commute more than fifteen miles to school, can we reject the college's claim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 270 students at this college is selected, and it is found that 71 commute more than fifteen miles to school, can we reject the college's daim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
Exercises#4 It has been claimed that the mean weight of women students at a college is 55.5Kg. Professor Ali does not believe the statement and sets out to show the mean weight is not 55.5Kg. To test the claim he collects a random sample of 200 weights from among the women students. A sample means of 54.75kg results. Is this sufficient evidence for Professor Ali to reject the statement? Use α 0.01 and σ 5.5Kg.
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