(d) Decide whether to reject or fail to reject the null hypothesis. O A. Fail to reject H, because the standardized test statistic is in the rejection region. O B. Reject H, because the standardized test statistic is in the rejection region. OC. Fail to reject Ho because the standardized test statistic is not in the rejection region. O D. Reject Ho because the standardized test statistic is not in the rejection region. (e) Interpret the decision in the context of the original claim. At the 5% significance level, there V enough evidence to V the claim that the mean monthly residential electricity consumption in a certain region kWh.
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.
Below is the completed question for the last question.
Reject / fail to reject H0. At the 4% significance level, there is / is not enough evidence to reject / support the claim.
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