sam can't keep up with the demand for the latest best selling book. he had to order more copies twice this week.on Monday he pla
1 answer:
Answer:
Sam would receive 17 boxes of books.
Step-by-step explanation:
Given:
Books ordered by Sam this week is given as:
120 books on Monday
286 books on Wednesday
To find the number of boxes Sam received if there are 24 books in each box.
Solution:
Total books ordered by Sam this week =
The total number of books is packed in boxes of 24 books each and received by Sam.
Thus, total number of books must be divided by 24 to find the number of boxed Sam would receive on Friday.
Total number of boxes of Books received by Sam =
Thus, Sam would receive 17 boxes of books.
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Answer:
x=2.116
Step-by-step explanation:
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Answer:
62.73°
step by step explanation
Answer:
Yes. At this significance level, there is evidence to support the claim that there is a difference in the ability of the brands to absorb water.
Step-by-step explanation:
<em>The question is incomplete:</em>
<em>The significance level is 0.05.</em>
<em>The data is:</em>
<em>Brand X: 91, 100, 88, 89</em>
<em>Brand Y: 99, 96, 94, 99</em>
<em>Brand Z: 83, 88, 89, 76</em>
We have to check if there is a significant difference between the absorbency rating of each brand.
Null hypothesis: all means are equal
Alternative hypothesis: the means are not equal
We have to apply a one-way ANOVA
We start by calculating the standard deviation for each brand:
Then, we calculate the mean standard error (MSE):
Now, we calculate the mean square between (MSB), but we previously have to know the sample means and the mean of the sample means:
The MSB is then:
Now we calculate the F statistic as:
The degrees of freedom of the numerator are:
The degrees of freedom of the denominator are:
The P-value of F=7.23, dfn=2 and dfd=9 is:
As the P-value (0.013) is smaller than the significance level (0.05), the null hypothesis is rejected.
There is evidence to support the claim that there is a difference in the ability of the brands to absorb water.