![subject](/tpl/images/cats/mat.png)
Mathematics, 12.06.2021 14:00 zazy15
1. [10 points) A business consultant wanted to
investigate if providing day-care facilities on premises
by companies reduces the absentee rate of working
mothers with children under six years old. She took a
sample of 45 such mothers from companies that provide
day-care facilities on premises. These mothers missed
an average of 6.4 days from work last year with a
standard deviation of 1.20 days. Another sample of 50
such mothers taken from companies that do not provide
day-care facilities on premises showed that these
mothers missed an average of 9.3 days last year with a
standard deviation of 1.85 days.
Program 1
1114
979
910
1091
996
996
1125
1056
1053
894
Program 2
1032
1074
959
1091
1032
1148
1076
1094
1096
1012
At the 1
level, ca
that ther
in effect
speed re
(Assume
populatic
sampled
approxim
distribute
complete
a. Using a 2.5% significance level, can you conclude that
the mean number of days missed per year by mothers
working for companies that provide day-care facilities
on premises is less than the mean number of days missed
per year by mothers working for companies that do not
provide day-care facilities on premises?
b. Describe the Type 1 error in the context of the
problem and its probability for the hypothesis test.
3. [10 points] A survey of 1000 young adu
found that among adults aged 18-29, 35%
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:20
The polynomial 10x3 + 35x2 - 4x - 14 is factored by grouping. 10x3 + 35x2 - 4x - 14 5x )-20 what is the common factor that is missing from both sets of parentheses?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:50
Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:30
Question 1 (3 points) saved what is the solution for the following system of equations? use any method to solve. y = -x +4 y = x - 2 question 1 options: ( 4 , -2) (2, 1) (3, 1) (3, -2) question 2 (3 points) saved the solution to a system of equations is where the lines intersect. question 2 options: true false question 3 (3 points) which ordered pair is the best estimate for the solution of the system of equations? the graph of the system of equations : y = 3/2x +6 and y=1/4x - 2 question 3 options: (-6, -3) (-6.5, -3.5) (-7, -4) (-7, -3.5) question 4 (3 points) what is the solution for the following system of equations? use any method to solve. 2x + 8y = 4 x = -3y + 5 question 4 options: x = 14, y= -3 x = 2, y = -3 x = -3, y = -3 x = 12, y = 5 question 5 (3 points) solve the following system using any method. 8a - 4b = 20 5a - 8b = 62 question 5 options: a = 5, b = -4 a = 8, b = 4 a = -5, b = -8 a = -2, b = -9 question 6 (3 points) breana is selling tickets to a choral performance. on the first day of ticket sales, she sold 3 senior citizen tickets and 1 child ticket for a total of $38. breana took in $52 on the second day by selling 3 senior citizen tickets and 2 child tickets. what is the price of a senior citizen ticket? question 6 options: question 7 (3 points) a farmer has 5 times as many cows as pigs. the farmer only has cows and pigs, and he has 168 animals. how many cows does he have? question 7 options: 140 cows 120 cows 50 cows 28 cows question 8 (3 points) how many solutions does the system have? question 8 options: zero one infinitely many question 9 (3 points) what is the solution to the system of equations? graph of x+2y = 6 and y = x question 9 options: (1 , -2) (2, 2) (3, 5) (-2, 2)
Answers: 1
You know the right answer?
1. [10 points) A business consultant wanted to
investigate if providing day-care facilities on prem...
Questions
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.08.2019 05:30
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.08.2019 05:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 22.08.2019 05:30
![question](/tpl/images/cats/istoriya.png)
History, 22.08.2019 05:30
![question](/tpl/images/cats/istoriya.png)
History, 22.08.2019 05:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.08.2019 05:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.08.2019 05:30
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.08.2019 05:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.08.2019 05:30