Hiroto reduces a rectangular photograph by 0.5 by scanning it onto his computer. The image on the screen measures 3 inches by 5
1 answer:
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Answer:
The number of people needed is
Step-by-step explanation:
From the question we are told that
The population proportion is
The margin of error is
From the question we are told the confidence level is 90% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of is
Generally the sample size is mathematically represented as
=>
=>
Answer:
or 0.375
Step-by-step explanation:
The absolute value of a number is how far that number is away of zero.