Answer:
Maximum
Step-by-step explanation:
Answer:
(28.36)
Step-by-step explanation:
Answer:
The two ratios given: 25/15 and 65/56 do not form a proportion.
Step-by-step explanation:
A proportion is formed when two ratios (or fractions) are equal. When you set the two ratios equal to each other:
You can then determine if they are equal by a few different methods. (1) You can cross-multiply the numbers and see if they are equal:
25 x 56 = 16 x 65 or 1040 ≠ 1400
You can also see if the numerators and denominators can be divided to form a common factor:
65 ÷ 25 = 2.6 and 56 ÷ 16 = 3.5
Since neither the products of cross-multiplication or the factors by division are equal, these two ratios do not form a proportion.
Answer:
There is sufficient evidence at the 0.10 level of significance that the percentage is not 21 %.
Step-by-step explanation:
In this question we are told that A newsletter publisher believes that 21 % of their readers own a Rolls Royce. A testing firm believes this is inaccurate and performs a test to dispute the publisher's claim.
Thus;
Null hypothesis; H0: μ = 21%
Alternative hypothesis; Ha: μ ≠ 21%
Usually in hypothesis testing, we reject the null hypothesis when the p-value is less than the significance level.
Now, we are told that after performing a test at the 0.10 level of significance, the testing firm decides to reject the null hypothesis.
Thus, we can conclude that There is sufficient evidence at the 0.10 level of significance that the percentage is not 21 %.
So we can conclude that