5. The population standard Deviation of a Standardized Anatomy Exam was 500 with a standard deviation of 48. Assume the distribution of scores is Bell-shaped. a) 47.5% of the scores are in what intervals? b) 49.85% of the scores are in what intervals?

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5. The population standard Deviation of a Standardized Anatomy Exam was 500 with a standard
deviation of 48. Assume the distribution of scores is Bell-shaped.
a) 47.5% of the scores are in what intervals?
b) 49.85% of the scores are in what intervals?
A manufacturer of mint chocolate chips would like to know whether its bag filling machine
works correctly at the 440 gram setting. The Quality assurance team claims that the machine is
filling the bags is less than 440 grams. A sample of 26 bags had a sample mean of 436.5 grams.
The sample standard deviation is 3.50 Assume a Level of Significance of a=0.01. Test the
claim. Answer Questions 6-10.
s State the Null and alternative Hynotheses
Transcribed Image Text:5. The population standard Deviation of a Standardized Anatomy Exam was 500 with a standard deviation of 48. Assume the distribution of scores is Bell-shaped. a) 47.5% of the scores are in what intervals? b) 49.85% of the scores are in what intervals? A manufacturer of mint chocolate chips would like to know whether its bag filling machine works correctly at the 440 gram setting. The Quality assurance team claims that the machine is filling the bags is less than 440 grams. A sample of 26 bags had a sample mean of 436.5 grams. The sample standard deviation is 3.50 Assume a Level of Significance of a=0.01. Test the claim. Answer Questions 6-10. s State the Null and alternative Hynotheses
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