Answer:
sorry bout the second part I wrote mm instead of m. Besides that I think this will be the correct answer. Hope this helps
Answer:
3 1/8 or 3.125.
Step-by-step explanation:
First you would change 1 1/4 to 5/4. Then you would make a proportion of 5/4 or I like to use decimals, 1.25, over 8. Your proportion would look like: 1.25/8 = x/20. Then cross multiply 1.25 and 20 then divide your product by 8. Your final answer is 3.125 or 3 1/8. Hope this helps!
Answer:
There is not enough evidence to conclude that the data supports the idea that more than 50% of people plan on voting for the levy
Step-by-step explanation:
Sample size, n = 150
Number of people that plan on voting for the levy, X = 78
Proportion of people that plan on voting for the levy:
![\bar{p} = X/n\\\bar{p} = 78/150\\\bar{p} = 0.52](https://tex.z-dn.net/?f=%5Cbar%7Bp%7D%20%3D%20X%2Fn%5C%5C%5Cbar%7Bp%7D%20%3D%2078%2F150%5C%5C%5Cbar%7Bp%7D%20%3D%200.52)
The study is to determine whether or not the data supports the idea that more than 50%(0.5) of people plan on voting for the levy
The null and alternative hypotheses are:
![H_0: p \leq 0.5\\H_a: p > 0.5](https://tex.z-dn.net/?f=H_0%3A%20p%20%5Cleq%20%200.5%5C%5CH_a%3A%20p%20%3E%200.5)
Calculate the test statistics:
![t_s = \frac{\bar{p} - p}{\sqrt{\frac{p(1-p)}{n} } } \\t_s = \frac{0.52-0.5}{\sqrt{\frac{0.5(1-0.5)}{150} } } \\t_s = 0.49](https://tex.z-dn.net/?f=t_s%20%3D%20%5Cfrac%7B%5Cbar%7Bp%7D%20-%20p%7D%7B%5Csqrt%7B%5Cfrac%7Bp%281-p%29%7D%7Bn%7D%20%7D%20%7D%20%5C%5Ct_s%20%3D%20%5Cfrac%7B0.52-0.5%7D%7B%5Csqrt%7B%5Cfrac%7B0.5%281-0.5%29%7D%7B150%7D%20%7D%20%7D%20%5C%5Ct_s%20%3D%200.49)
For a test statistic
, the p-value = 0.3121
The significance value, ![\alpha = 0.10](https://tex.z-dn.net/?f=%5Calpha%20%3D%200.10)
Since the p-value(0.3121) is greater than α(0.10), the null hypothesis
will be accepted.
This means that there is not enough evidence to conclude that the data supports the idea that more than 50% of people plan on voting for the levy
Answer: -2.6%
Step-by-step explanation:
Percent error is the difference between the measured and known value, and then we divide by the known value, and then multiply by 100%.
Estimated.number = 15.4 grams.
Actual number = 15.8 grams
Percentage error = (Estimated number - Actual number)/Actual number × 100
= (15.4 - 15.8)/15.8 × 100
= -0.4/15.8 × 100
= 0.0253 × 100
= 2.53
= -2.6% approximately
Answer:
Twelve 10 dollar bills
Step-by-step explanation:
10, the value of a 10$ bill, times twelve equals 120$