1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PolarNik [594]
2 years ago
15

The Acculturation Rating Scale for Mexican Americans (ARSMA) is a psychological testdeveloped to measure the degree of Mexican/S

panish versus Anglo/Englishacculturation of Mexican Americans. The distribution of ARSMA scores in a populationused to develop the test was approximately normal, with mean 3.0 and standarddeviation 0.8. A further study gave ARSMA to 50 first-generation Mexican Americans.The mean of their scores is x bar = 2.36. If the standard deviation for the first-generationpopulation is also 0.8.
Required:
Give a 95% confidence interval for the mean ARSMA score forfirst-generation Mexican Americans
Mathematics
1 answer:
maria [59]2 years ago
7 0

Answer:

95% confidence interval for the mean ARSMA score for first-generation Mexican Americans

(2.13264 , 2.58736)

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Mean of the Population = 3.0

Standard deviation of the Population = 0.8

Given Mean of the sample(x⁻ ) = 2.36

Standard deviation of the sample  (S) = 0.8

size of the sample = 50

Level of significance =0.05

Degrees of freedom = n-1 = 50-1 = 49

t_{\frac{0.05}{2} , 49} = 2.0096

<u><em>Step(ii)</em></u>:-

95% confidence interval for the mean ARSMA score for first-generation Mexican Americans

(x^{-} - t_{(\frac{\alpha }{2},df )} \frac{S}{\sqrt{n} } , (x^{-} +t_{(\frac{\alpha }{2},df )} \frac{S}{\sqrt{n} })

(2.36 - 2.0096 \frac{0.8}{\sqrt{50} } , 2.36 +2.0096\frac{0.8}{\sqrt{50} })

( 2.36 - 0.22736 , 2.36 + 0.22736)

(2.13264 , 2.58736)

<u><em>Final answer</em></u>:-

95% confidence interval for the mean ARSMA score for first-generation Mexican Americans

(2.13264 , 2.58736)

You might be interested in
How to solve 3/4 = 8/x-1
otez555 [7]
3/4=8/x-1

3/4+4/4=8/x

7/4=8/x

7x/4=8

7x=32

x=32/7
6 0
3 years ago
What Two pairs of fractions are shown. Which symbol correctly compares 2/3 2/4 each pair of fractions?
VikaD [51]

Answer:

Greater than symbol.

2/3 > 2/4

Step-by-step explanation:

We have two fractions, 2/3 and 2/4

We then go back to the inequality part of mathematics where we have symbols such as greater than (>), less than (<), and equal to (=).

Of the three inequality symbols, we look and pick at the one that represents best, the fractions we were given.

2/3 and 2/4

With 2/3 being greater than 2/4.

2/3 = 0.67

2/4 = 0.50

Succinctly, 2/3 > 2/4.

4 0
3 years ago
explain how it is possible that all proportional relationships are linear functions but not all linear functions are proportiona
OLEGan [10]

Proportional and linear functions are almost identical in form. The only difference is the addition of the “b” constant to the linear function. Indeed, a proportional relationship is just a linear relationship where b = 0, or to put it another way, where the line passes through the origin (0,0).

You’re welcome

6 0
3 years ago
An architect's scale drawing of a new school is 8.4 inches long. The scale used in the drawing is 2 inches = 8 feet.
Brut [27]

Answer:

33.6f eet

Step-by-step explanation:

if

2=8 then

8.4x8= 67.2/2= 33.6 feet

3 0
3 years ago
5 times 7/8 then converted to simplest form?
pantera1 [17]
5*7/8 = 4 3/8
5/1 * 7/8 = 35/8
convert into mixed number because numerator is bigger than the denominator so it it
4 3/8
7 0
3 years ago
Other questions:
  • A physicist examines 4 water samples for mercury concentration. The mean mercury concentration for the sample data is 0.470 cc/c
    13·1 answer
  • I need help math Brainliest
    6·1 answer
  • What would you want to measure the length of a flag pole in?
    14·1 answer
  • What is 399713 rounded to the nearest thousands
    10·2 answers
  • An integer is 3 less than 5 times another. If the product of the two integers is 36, then find the integers.
    14·2 answers
  • We are testing H0: µ ≤ 42; versus HA: µ &gt; 42. When Picture = 45, s = 1.2, and n = 15, at α = .01 we do not reject the null hy
    7·1 answer
  • On a broken-line graph, only the plotted points represent the actual data obtained from an experiment.
    13·1 answer
  • In the figure, DE and DF are midsegments of triangle ABC. Find BC. Enter your answer as a number.
    6·1 answer
  • Use the expression 4z + 8 + 3x + b to answer the following
    6·1 answer
  • Whats the answer can someone answer please​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!