Step-by-step explanation:
1. Add 5 to both sides.
2. Divide both sides by 2.
3. Take the square root of both sides.
4. Subtract from both sides.
Answer:
20/3 mph (miles per hour)
6.666666666666... mph (miles per hour)
6 2/3 mph (miles per hour)
Step-by-step explanation:
1/4 x 4= one hour (unit rate)
5/3 x 4 = 20/3 mph (miles per hour)
Complete Question
Although the first quarter of 2002 was quite dismal on Wall Street, mutual funds investing in gold companies rose an average of 35.2%. Assume that the distribution of returns in the first quarter of 2002 for mutual funds specializing in gold companies is fairly symmetrical with a mean of 35.2% and a standard deviation of 20%. If random samples of 16 gold stock funds were selected:
90% of the sample mean returns are between what two values symmetrically distributed around the mean?
Answer:
The two values symmetrically distributed around the mean are
21.87\% and 43.17\%
Step-by-step explanation:
From the question we are told that
The sample size is
The sample mean is
The standard deviation is
Generally the degree of freedom is mathematically represented as
=>
=>
From the question we are told the confidence level is 90% , hence the level of significance is
=>
Generally from the t distribution table the critical value of at a degree of freedom of is
Generally the margin of error is mathematically represented as
=>
=>
Generally 90% confidence interval is mathematically represented as
=>
converting to percentage
=>
Hence the 90% of the sample mean returns are between 21.87\% and 43.17\%
Answer:
6.0
Step-by-step explanation:
p/sinP = q/sinQ
p/sin(13) = 25/sin(70)
p = sin(13) × 25/sin(70)
p = 5.984697798