What is the cross section created when a slice is made perpendicular to the 2 bases of a cylinder?
1 answer:
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Answer:
They have to make 6 trays to cover the cost including labor.
Step-by-step explanation:
Given:
Number of labor =2
Cost per hour of labor =7.00
Number of hours they work = 8
Selling cost of each trays =35.00
making cost of each tray = 14.00
We need to find the number of trays they to make to cover the cost including the labor.
Solution:
Let the number of trays be 'x'.
First we will will find the Total cost of labor.
Total cost of labor is equal to Number of labor multiplied by Cost per hour of labor multiplied by Number of hours they work.
framing in equation form we get;
Total cost of labor =
Now we can say that;
Selling price of each tray multiplied number of trays equal to Making cost of each trays multiplied by number of tray plus Cost of labor.
framing in equation form we get;
Combining like terms we get;
Dividing both side by 21 using division property of equality we get;
Hence They have to make 6 trays to cover the cost including labor.
Answer:
So the p value obtained was a very low value and using the significance level given we have
so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion of germinated seeds is significantly lower than 0.9 or 90%
Step-by-step explanation:
Data given and notation
n=15 represent the random sample taken
X=7 represent the number of seeds germinated
estimated proportion of seeds germinated
is the value that we want to test
represent the significance level
z would represent the statistic (variable of interest)
represent the p value (variable of interest)
Concepts and formulas to use
We need to conduct a hypothesis in order to test the claim that the true proportion of germinated seeds is less than 0.9 or 90%.:
Null hypothesis:
Alternative hypothesis:
When we conduct a proportion test we need to use the z statisitc, and the is given by:
(1)
The One-Sample Proportion Test is used to assess whether a population proportion is significantly different from a hypothesized value
.
Calculate the statistic
Since we have all the info requires we can replace in formula (1) like this:
Statistical decision
It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.
The significance level assumed is . The next step would be calculate the p value for this test.
Since is a left tailed test the p value would be:
So the p value obtained was a very low value and using the significance level given we have
so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion of germinated seeds is significantly lower than 0.9 or 90%