95% | confidence level |
103 | mean |
13 | std. dev. |
100 | n |
1.984 | t (df = 99) |
2.579 | margin of error |
100.421 | lower confidence limit |
105.579 | upper confidence limit |
Answer:
Lower Limit= 100.4
Upper Limit= 105.6
0_U-IgNsikasNWEDBA9PVVRe4tCL6xedC30WT75R50Xmai_KAADILAjqzxPmXWKWIKC78EfixucBBnZ8UYHNdNiOwplSM. Homework 14 Question 8 of 11 (1 point) Question Attempt 2 of Unlimited ✓2 ✓3...
A psychologist is interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group have a standard deviation of 10. The psychologist randomly selects 80 children from this group and finds that their mean IQ score is 111. Based on this sample, find a 95% confidence interval for the true mean IQ score for all children of this group. Then complete the table below. Carry your intermediate computations to...
-STA2023-TR 12.30-t45 (1585) Spg 2019 (2192) Qutz 4: Chapter 7 3 of 8 Time Remaining 1:12:54 A psychologist is interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group have a standard de ation of İ3 The psychologist randomly selects children from this group and finds that their mean IQ score is los. Based on this sample, find a 9 % co fidence interval for the true mean...
Introduction to Statistics- Late Spring 2018-Int... Qulz 7 5 of 25 10 12 13 14 15 16 17 18 A psychologist is interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group have a standard deviation of 10. The psychologist randomly selects 70 children from this group and finds that their mean l score is l 4 Based on this sample, find a 95% confidence terval for the...
A psychologist is interested in the mean I score of a given group of children. It is known that the IQ scores of the group have a standard deviation of 14. The psychologist randomly selects 60 children from this group and finds that their mean IQ score is 112. Based on this sample, find a 90% confidence interval for the true mean IQ score for all children of this group. Then complete the table below Carry your intermediate computations to...
Geri Dumi . Quiz 4.c × + STA2023-TR 12:30-645 1585) Spg 2019 (2102 Time Remair ining r1357 A psychologist is interested in the mean 1Q score of a given group of children. It is known that the 1Q scores of the group have a standard deviation of 11. The psychologist randomly selecta 90 children from this group and finds that ther mean iq scares i 12. Based on this sample, fine a 90% contidence imena the true mean tQ score...
10 11 A psychologist wants to estimate the standard deviation of IQ scores. It is widely believed that IQ scores follow a normal distribution. Her random sample of 20 IQ scores has a mean of 104.8 and a standard deviation of 19. Find the 90% confidence interval for the population standard deviation based on this sample. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to at least two decimal places....
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