Answer:
The critical value that should be used in constructing the interval is T = 5.8408.
The 99% confidence interval for the true mean yield is between 2.943 bushels per acre and 96.268 bushels per acre.
Step-by-step explanation:
We have the standard deviation of the sample, so we use the students t-distribution 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 = 4 - 1 = 3
99% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 3 degrees of freedom(y-axis) and a confidence level of
. So we have T = 5.8408. This is the critical value.
The margin of error is:
M = T*s = 5.8408*7.99 = 46.668 bushels per acre
In which s is the standard deviation of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 49.6 - 46.668 = 2.943 bushels per acre.
The upper end of the interval is the sample mean added to M. So it is 49.6 + 46.668 = 96.268 bushels per acre.
The 99% confidence interval for the true mean yield is between 2.943 bushels per acre and 96.268 bushels per acre.
Hello!
We have the following data:
a1 (first term or first year salary) = 32000
r (ratio or annual increase) = 300
n (number of terms or each year worked)
We apply the data in the Formula of the General Term of an Arithmetic Progression, to find in sequence the salary increases until it exceeds 34700, let us see:
formula:
* second year salary




* third year salary




* fourth year salary




* fifth year salary




We note that after the first five years, Mr. Browns' salary has not yet surpassed 34700, let's see when he will exceed the value:
* sixth year salary




* seventh year salary




* eighth year salary




* ninth year salary




* tenth year salary




we note that in the tenth year of salary the value equals but has not yet exceeded the stipulated value, only in the eleventh year will such value be surpassed, let us see:
* eleventh year salary




Respuesta:
In the eleventh year of salary he will earn more than 34700, in the case, this value will be 35000
________________________
¡Espero haberte ayudado, saludos... DexteR! =)
A word or phrase used to describe a thing or to express a concept, especially in a particular kind of language or branch of study.
Answer:

Step-by-step explanation:
Given


Required
Determine the scale
The scale is calculated using the following ratio:

Substitute values for Scale and Actual Measurements

Divide ratio by 20.5


This implies that: <em>1 inch on scale represents 8 ft in actual measurement</em>