According to timeanddate.com the mean temperature in NCR during the dry season is 29°C with a standard deviation of3.5°C. Temperatures were again observed for a week and the mean was found to be 32°C. Is there evidence to show that the temperature in NCR has changed if the level of significance is 1%? What test should be applied? (A) Left tailed t test B Right tailed z test (C) Two tailed t test D Two tailed z test

Q: eights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation…

A:

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A: X~N( μ , ?)   μ=8.21 , ?=1.48   Z-score =( x - μ )/?

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A:

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A:

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