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 :
Hence, Confidence Interval = (23.776, 24.224)
Answer:
90% of the questions she answered correctly
Step-by-step explanation:
%age = 81/90 * 100= 90 % correctness
The first step to solve this problem is to compute for the
total money of Veronica. You can do this by:
$35 (given to bill) / 20% (percentage of her money given to
Bill) = $175
Since you already know the total money of Veronica, you can
now compute how much she spent to buy books which are 50% of her remaining
money after giving Bill $35.
($175 - $35) x 50% = $70
Therefore, she spent $70 for her books.
$175 – $35 – $70 = $70
Therefore, she has $70 left.
Answer:
The answer to your question is 50 days
Step-by-step explanation:
Xiomara tarda 12 días
Diego tarde 60 días
Después de 2 días Xiomara se retira, en cuanto tiempo terminara Diego?
Primero, debemos calcular cuanto del total avanzo Xiomara
Xiomara tarda 12 días en hacer todo, es decir en un día hace la
doceava parte del total (1/12) en dos días hace (2/12) = (1/6)
Es decir Xiomara avanzo 1/6 del total
Calculamos la equivalencia en sextos del trabajo de Diego
Para Diego 1/6 = dividimos 60 días entre 6 = 10 días, es decir
2 días de Xiomara equivalen a 10 días de Diego.
Finalmente
Tiempo restante = 60 días - 10 días = 50 días
