a bookstore has 780,000 and sales revenue in 2005 $190,000 2011 assuming a constant annual rate of decrease what is the predicte
1 answer:
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Answer:
a
The null hypothesis is
The alternative hypothesis is
b
The sample proportion is
Step-by-step explanation:
From the question we are told that
The sample size is n = 546
The number of people that use a laptop overnight is
The population proportion is
Generally
The null hypothesis is
The alternative hypothesis is
Gnerally the sample proportion is mathematically represented as
=>
=>
The probability of finding one of the two defective fuses is:
The probability of finding 2 defective fuses is:
Therefore the probability of rejecting is 0.3117 + 0.026 = 0.3377.
The probability of finding 2 defective fuses is:
Therefore the probability of rejecting is 0.3117 + 0.026 = 0.3377.