Hello, I am having trouble with this math problem. Can you please explain to me steps of this math problem. Thank you. The lengths of time (in years) it took a random sample of 32 former smokers to quit smoking permanently are listed. Assume the population standard deviation is 5.3 years. At α= 0.07, is there enough evidence to reject the claim that the mean time it takes smokers to quit smoking permanently is 14 years? Complete parts (a) through (e). 8.4 20.3 22.7 20.9 15.6 20.9 13.9 22.2 14.7 9.8 21.8 14.4 12.8 18.8 20.4 8.7 7.9 19.4 22.5 13.7 14.8 15.3 18.7 19.9 16.8 19.8 18.4 22.4 13.9 15.5 15.1 18.8 (a) Identify the claim and state the null hypothesis and alternative hypothesis HO: u=14 claim HA: U not equal 14 ( B) Identify the standardized test statistic. Use technology. z= __________ ( Round to two decimal places needed.) (c) Find the P-value. __________ (Round to three decimal places as needed.) (d) To determine whether to reject or fail to reject the null hypothesis. __________ Can you please break down this math problem. Thank you.
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.
Hello, I am having trouble with this math problem. Can you please explain to me steps of this math problem. Thank you.
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8.4
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20.3
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22.7
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20.9
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15.6
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20.9
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13.9
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22.2
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14.7
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9.8
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21.8
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14.4
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12.8
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18.8
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20.4
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8.7
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7.9
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19.4
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22.5
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13.7
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14.8
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15.3
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18.7
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19.9
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16.8
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19.8
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18.4
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22.4
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13.9
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15.5
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15.1
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18.8
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(a) Identify the claim and state the null hypothesis and alternative hypothesis
HO: u=14 claim
HA: U not equal 14
( B) Identify the standardized test statistic. Use technology.
z= __________ ( Round to two decimal places needed.)
(c) Find the P-value.
__________ (Round to three decimal places as needed.)
(d) To determine whether to reject or fail to reject the null hypothesis.
__________
Can you please break down this math problem. Thank you.
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