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Angelina_Jolie [31]
3 years ago
5

The dot plot below shows the number of books 26 students read in a month:

Mathematics
1 answer:
tangare [24]3 years ago
3 0
The answer is

C. Median; because the data is skewed and there are outliers

100% Verified!

Hope This Helps!:)
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In a random sample of 26 residents of the state of Montana, the mean waste recycled per person per day was 2.8 pounds with a sta
Rainbow [258]

Answer:

The critical value that should be used in constructing the confidence interval is T = 1.316.

The 80% confidence interval for the mean waste recycled per person per day for the population of Montana is between 2.741 pounds and 2.859 pounds.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 26 - 1 = 25

80% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 25 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.8}{2} = 0.9. So we have T = 1.316

The critical value that should be used in constructing the confidence interval is T = 1.316.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.316\frac{0.23}{\sqrt{26}} = 0.059

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 2.8 - 0.059 = 2.741 pounds

The upper end of the interval is the sample mean added to M. So it is 2.8 + 0.059 = 2.859 pounds.

The 80% confidence interval for the mean waste recycled per person per day for the population of Montana is between 2.741 pounds and 2.859 pounds.

4 0
2 years ago
I only need #8, but if you want to do the others you can.
lutik1710 [3]
Ralphs is 7.5x+10
frank’s is 10x
7 0
3 years ago
Read 2 more answers
A company pays a bonus to four employees A, B, C, and D. A gets four times as much as B. B gets 50% of the amount paid to C. C a
Tomtit [17]

Answer:

A = 800, B = 200, C = 400 Andy D = 400

Step-by-step explanation:

5 0
3 years ago
Shelia went snowboarding. She spent $118 for the pass and snowboard rental. The snowboard rental cost $25. What percent of the t
padilas [110]
I believe the answer is about 78.81% because you subtract 25 from 118. Then that would be 93. 118 is equal to the 100% and 118 divide by 1.18 equals 100. Divide 93 from 1.18 gives you the answer
5 0
3 years ago
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It is a Saturday morning and Jeremy has discovered he has a leak coming from the water heater in his attic. Since plumbers charg
Jet001 [13]
The answer is
A
"For every half an hour there is 1/5 of the bucket is filled"    Hope I helped                                                                                 
B: Not sure not very good at equations :(                                                      
C: Well there is Half an hour so if you multiply that by 5 then its. 2 1/2 hours :)
Hope I helped








4 0
3 years ago
Read 2 more answers
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