Answer:
The p value for this case can be calculated with this probability:
Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1
Step-by-step explanation:
Information given
n=310 represent th sample selected
X=28 represent the subjects wrong
estimated proportion of subjects wrong
is the value to verify
represent the significance level
t would represent the statistic
represent the p value
System of hypothesis
We want to test the claim that less than 10 percent of the test results are wrong ,and the hypothesis are:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Replacing the info we got:
The p value for this case can be calculated with this probability:
Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1
If you decrease by 19% you can multiply the original number by .91. That's the remaining percentage.
Answer:
There would be $3,450.14 by the end of 4 months
There would be $4,623.78 by the end of 7 years.
Step-by-step explanation:
We are given the following in the question:
P = 3,400$
r = 4.4% = 0.044
Compounded monthly
Formula:
The compound interest is given by:
where A is the amount, p is the principal, r is the interest rate, t is the time in years and n is the nature of compound interest.
a) 4 months
There would be $3,450.14 by the end of 4 months.
b) 7 years
t = 7
There would be $4,623.78 by the end of 7 years.
Answer: 350/100 as a decimal equals 3.5
Step-by-step explanation:
Answer:
x < -24(option
Step-by-step explanation:
-¼x - 12 > -6
Add 12 to both sides
-¼x - 12+12 > -6+12
-¼x > 6
Divide both sides by -¼
x < 6 ÷ -¼
Please note that the inequality sign changes when divided by negative (minus). This is a rule in inequalities.
x < 6 × -4
x < -24
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