Examlex

Solved

Ivan, a Scientist, Invented a Method of Using Solar Energy

question 71

Multiple Choice

Ivan, a scientist, invented a method of using solar energy to power electrical devices. However, the cost of using the method on a large scale was prohibitive. Hence, his invention was not adopted by his target customers. The lack of _____ was the reason for the failure of his invention.


Definitions:

Z-test

A statistical test used to determine whether two population means are different when the variances are known and the sample size is large.

µ = 15

Represents the mean of a population is equal to 15.

Z-statistic

A measure used in statistics to quantify the deviation of a data point or a group of data points from the mean, expressed in terms of standard deviations.

Two-tailed Test

A statistical test that allows for the exploration of relationships in both directions, enabling the detection of significant differences regardless of the direction.

Related Questions