Answer:
Confidence Interval = (23.776, 24.224)
Step-by-step explanation:
Restaurant chain claims that its bottles of ketchup contain 24 ounces of ketchup on average.
⇒ Mean = 24 ounces.
Standard Deviation = 0.8
Number of bottles used for sample = 49
⇒ n = 49
Confidence level = 95%
Corresponding z value with 95% confidence level = 1.96
Now, confidence interval is given by the following expression :
![Mean \pm z^*\times \frac{\sigma}{\sqrt{n}}\\\\=24\pm1.96\times \frac{0.8}{\sqrt{49}}\\\\=24\pm 0.224](https://tex.z-dn.net/?f=Mean%20%5Cpm%20z%5E%2A%5Ctimes%20%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%5C%5C%5C%5C%3D24%5Cpm1.96%5Ctimes%20%5Cfrac%7B0.8%7D%7B%5Csqrt%7B49%7D%7D%5C%5C%5C%5C%3D24%5Cpm%200.224)
Hence, Confidence Interval = (23.776, 24.224)
The equation would be 2x+3 so when you plug it in it's 2(-2)+3 which simplify to -4+3 which is -1
Answer:
1. perim is 43.2
2. where are the blanks? dont see any
Step-by-step explanation:
Answer:
1-5,-0.25,0.3
Step-by-step explanation:
1). 15 / 8 - 2 / 5
15 / 18 - 2 / 5
15 / 18 + -2 / 5
5 / 6 + -2 / 5
25 / 30 + -12 / 30
25 + -12 / 30
Answer: 13 /30 (Decimal: 0.433333)
2). 2 / 23 + 1 / 2
2 / 23 + 1 / 2
4 / 46 + 23 / 46
4 + 23 / 46
Answer: 27 / 46 (Decimal: 0.586957)
3). 1 / 3 + 14 / 15
1 /3 + 14 / 15
5 /15 + 14 / 15
5 + 14 / 15
Answer: 19 / 15 ====> 1 4 / 15 ( Decimal: 1.266667)
4). 1 / 6 + 2 5 / 8
1 / 6 + 2 5 / 8
1 / 6 + 21 / 8
67 / 24
Answer: 2 19 /24 ( Decimal: 2.791667)
5). 4 / 5 * 1 2 / 3
4 / 5 * 5 / 3
4 / 3
Answer: 1 1 / 3 ( Decimal: 1.333333)
6). 8 / 2 1 / 5
8 / 11 / 5
40 / 11
Answer: 3 7 / 11 ( Decimal: 3.636364)
7). 6 1 / 4 * 3 1 /2
25 / 4 * 3 1 / 2
25 / 4 * 7 / 2
175 / 8
Answer: 21 7 / 8 (Decimal: 21.875)
8). 1 5 / 6 * 4
11 / 6 * 4
22 / 3
Answer: 7 1 / 3 (Decimal: 7.333333)
Hope that helps!!!!! : )