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Rina8888 [55]
3 years ago
6

Josh works h hours in a week. To find his weekly pay he multiplies his hours by his pay of $30 per hour and adds $5 for his sale

s bonus. He's decided that he wanted to take one-fifth of his weekly pay and place it in his savings. Which simplified expression represents the amount that will go into his savings each week?
Mathematics
1 answer:
OleMash [197]3 years ago
3 0
Shsshxuesnxhfrndnfbfb isk
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Hayden wanted to investigate whether there was a difference in the time spent in the checkout line between two grocery stores. S
Ber [7]

Answer:

No.  The data in this study were not based on a random method.  This is a key requirement for an inference to be made from the two-sample t-test.

Step-by-step explanation:

1. Hayden can use the two-sample t-test (also known as the independent samples t-test)to find out if there was a difference in the time spent in the checkout time between two grocery stores and to conclude whether the difference in the average checkout time between the two stores is really significant or if the difference is due to a random chance.  There are three conditions to be met when using the two-sample t-test.

2. The first condition is that the sampling method must be random.  This requirement was not met in this study.  Each customer from each store should have an equal chance of being selected for the study.  This was not achieved.

3. The distributions of the sample data are approximately normal.  This is achieved with a large sample size of 30 customers selected for each study.

4. The last but not the least condition is the independence of the sample data.  Sample data here is independent for both samples.

5 0
3 years ago
Graph + > -1.
andrew-mc [135]

You have the right idea but the endpoint is at the wrong location. Instead, the green dot should go at -1. The shading is to the right. We use a closed filled in circle here (instead of an open hole) to tell the reader "include the endpoint". So -1 is part of the solution set.

In short, the graph consists of a closed filled in circle at -1 with shading to the right. This visually describes all values that are larger than -1, or equal to -1.

6 0
2 years ago
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Write the quadratic equation, in vertex form for each graph.<br> number 9 and 10 please
Crazy boy [7]

Answer:

Anyone have all the answers?

Step-by-step explanation:

6 0
3 years ago
In the table, Pattern A uses the rule "add 3" and Pattern B uses the rule "add 9."
Paladinen [302]
Statement 1 is true.
-Hope this helps, have a nice day! :)
6 0
3 years ago
47.76 divided by 4.8
Vesna [10]

Answer:

the answer is 9.95

6 0
3 years ago
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