Instruction 10-10
a Few Years Ago, Pepsi Invited Consumers $p _ { M }$

question 126

Short Answer

Instruction 10-10
A few years ago, Pepsi invited consumers to take the "Pepsi Challenge". Consumers were asked to decide which of the two soft drinks, Coke or Pepsi, they preferred in a blind taste test. Pepsi was interested in determining what factors played a role in people's taste preferences. One of the factors studied was the gender of the consumer. Below are the results of analyses comparing the taste preferences of men and women with the proportions depicting preference for Pepsi.
Males: n = 109, $p _ { M }$ = 0.422018 Females: n = 52, $p _ { F }$ = 0.25 $p _ { M }$ - $p _ { F }$ = 0.172018 Z = 2.11825
-Referring to Instruction 10-10,construct a 90% confidence interval estimate of the difference between the proportion of males and females who prefer Pepsi.

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Definitions:

Time Delay

A deliberate pause or latency introduced into a process or electronic circuit, to ensure timings and sequences are properly coordinated.

De-energized

The state of an electrical device or system when it is not supplied with power or electricity, often as a safe condition for maintenance or setup.

TOF Timer

A timing function that begins timing when the input signal goes from true to false, often used in programmable logic controllers (PLCs).

Accumulate Time

A process in computing or control systems where elapsed or total time for events is recorded or added together.