PLEASE HELP ASAP!! WILL MARK BRAINLIEST!!!!

In a survey conducted by the marketing agency 11mark, 241 of 1000 adults 19 years of age or older confessed to bringing and usin

Ann [662]

Answer: kindly check explanation

Step-by-step explanation:

A) The sample is a fraction of the total population used in the study.

The sample is 1000 19 years of age or older U.S adult.

The population : all U.S adults aged 19 or older.

B.) Confession about bringing cell phone to the bathroom and it is a qualitative variable

C.) point estimate (p) :

Total number of sample = 1000

Number who confessed to bring cellphone = 241

p = 241/ 1000

= 241/1000 = 0.241

D.) The point estimate was deduced from the sample information and not the population. Random selection because selection is unbiased.

E.) 95% confidence interval (CI)

95% CI = (1 - 0.95) = 0.05

For a two-tailed test : 0.05 / 2 = 0.025

Z - score = 1.96

Error : (√[p(1 - p) / n])*z

1.96 * √0.241(1-0.241)/1000

1.96* √0.000182919

1.96 * 0.0135247

= 0.0265085

Boundary :

(0.241 - 0.0265085), (0.241 + 0.0265085)

(0.2144915, 0.2675085)

F) The sample can be said to be representative of the total population since the sampling was performed and participants were chosen at random.

7 0

3 years ago

5) Find the equation of a line in slope-intercept form through the point

Vinvika [58]

Answer:

y = -x + 4

perp: m = 1

y + 4 = x - 3

y = x - 7

Step-by-step explanation:

8 0

3 years ago

Verizon is implementing a new program based on the number of connected devices in each household. Currently, customers are charg

Amanda [17]

Answer:

d

Step-by-step explanation:

it goes with the correct statements in the sentences it is the right symbol and has the variable for the unknown amount of devices

3 0

3 years ago

What is the converse of the statement below?<br> “If today is Friday, then tomorrow is Saturday."

Ugo [173]

Answer:

C (Sorry if its incorrect)

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Below are 36 sorted ages of an acting award winner. find the percentile corresponding to age 3838 using the method presented in

horrorfan [7]

Question:

Below are 36 sorted ages of an acting award winner. find the percentile corresponding to age 38 using the method presented in the textbook. 18 19 20 20 21 23 25 31 33 34 35 37 38 47 50 51 55 55 58 59 62 62 64 66 69 70 70 70 71 71 72 74 74 75 77 80 percentile of value 38 = ______ (round to the nearest integer as needed.)

Answer:

33 percentile

Step-by-step explanation:

Given the ages:

18, 19, 20, 20, 21, 23, 25, 31, 33, 34, 35, 37, 38, 47, 50, 51, 55, 55, 58, 59, 62, 62, 64, 66, 69, 70, 70, 70, 71, 71, 72, 74, 74, 75, 77, 80.

We are told to find the percentile corresponding to age 38.

To find the percentile corresponding to age 38 simply means to find the percentage of ages that are less than 38.

From the given values, the number of ages less than 38 are 12. Therefore, the percentile corresponding to age 38 would be:

(Ages less than 38/ total number of ages) * 100

$= \frac{12}{36} * 100 = 33.333$

33.333 ≈ 33

The percentile corresponding to age 38 = 33 percentile

5 0

3 years ago