greater than 30 parts per billion. To test this estimate, you determine the 29 17 44 23 22 35 23 17 25 27 23 nitrogen dioxide levels for 31 randomly selected days. The results (in parts 35 27 32 33 39 30 18 21 43 40 30 per billion) are listed to the right. At a = 0.12, can you support the scientist's estimate? Complete parts (a) through (e). 30 27 34 14 20 32 33 39 24 (a) Write the claim mathematically and identify H, and H,. Choose from the following. O A. Ho: µ= 30 (claim) H,: µ> 30 О В. Но и 30 H,: u> 30 (claim) O C. Ho: µ< 30 H3: u2 30 (claim) O D. Ho: us 30 (claim) H: µ> 30 ΟΕ. Η : μ2 30 (claim) 'F. Ho: us 30 Ha: u> 30 (claim) Ha:H< 30 (b) Find the critical value and identify the rejection region. Zo (Round to two decimal places as needed.)
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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