The Manager of an Online Shop Wants to Determine Whether

question 106

Multiple Choice

The manager of an online shop wants to determine whether the mean length of calling time of its customers is significantly more than 3 minutes.A random sample of 100 customers was taken.The average length of calling time in the sample was 3.1 minutes with a standard deviation of 0.5 minutes.At a 0.05 level of significance,it can be concluded that the mean of the population is

• A)significantly greater than 3.
• B)not significantly greater than 3.
• C)significantly less than 3.
• D)significantly not different from 3.10.

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Definitions:

Memory Pruning

Memory pruning involves the process by which the brain removes or weakens certain neural connections that are not often used, thereby optimizing cognitive functioning by removing unnecessary information.

Deferred Imitation

The ability to observe an action and replicate it later, even without the original model present, a skill indicating advanced cognitive development.

Infant Memory

the ability of infants to store, retain, and recall information learned from their experiences, playing a crucial role in cognitive and social development.

Before Birth

The period of development in the womb from conception until birth.