Is there a relation between the age difference between husband/wives and the percent of a country that is literate? Researchers found the least-squares regression between age difference (husband age minus wife age), y, and lite (percent of the population that is literate), x, is y-0.0489x + 6.7. The model applied for 20 sxs 100. Complete parts (a) through (o) below. (a) Interprel the slope. Select the correct choice below and fill in the answer box to complete your choice. v the V falls by units, on average. For every unit increase in (Type an integer or decimal. Do not round.) (b) Does it make sense to interpret the y-intercept? Explain. Choose the correct answer below. O A Yes-t makes sense to interpret the y-intercept because an x-value of 0 is within the realm of possibilities. O B. No-t does not make sense to interpret the y-intercept because an x-value of 0 is impossible. OC. No-t does not make sense to interpret the y-intercept because a y-value of 0 is outside the scope of the model. O D. No-t does not make sense to interpret the y-intercept because an x-value of 0 is outside the scope of the model. O E. No-t does not make sense to interpret the y-intercept because a y-value of 0 is impossible. (c) Predict the age difference between husband/wife in a country where the literacy rate is 45 percent. years (Round to one decimal place as needed.) (d) Would it make sense to use this model to predict the age difference between husband/wife in a country where the literacy rate is 10%? O A Yes-it makes sense because a y-value of 10 is within the realm of possibilities and within the scope of the model. O B. No-it does not make sense because a y-value of 10 is outside the scope of the model
Is there a relation between the age difference between husband/wives and the percent of a country that is literate? Researchers found the least-squares regression between age difference (husband age minus wife age), y, and lite (percent of the population that is literate), x, is y-0.0489x + 6.7. The model applied for 20 sxs 100. Complete parts (a) through (o) below. (a) Interprel the slope. Select the correct choice below and fill in the answer box to complete your choice. v the V falls by units, on average. For every unit increase in (Type an integer or decimal. Do not round.) (b) Does it make sense to interpret the y-intercept? Explain. Choose the correct answer below. O A Yes-t makes sense to interpret the y-intercept because an x-value of 0 is within the realm of possibilities. O B. No-t does not make sense to interpret the y-intercept because an x-value of 0 is impossible. OC. No-t does not make sense to interpret the y-intercept because a y-value of 0 is outside the scope of the model. O D. No-t does not make sense to interpret the y-intercept because an x-value of 0 is outside the scope of the model. O E. No-t does not make sense to interpret the y-intercept because a y-value of 0 is impossible. (c) Predict the age difference between husband/wife in a country where the literacy rate is 45 percent. years (Round to one decimal place as needed.) (d) Would it make sense to use this model to predict the age difference between husband/wife in a country where the literacy rate is 10%? O A Yes-it makes sense because a y-value of 10 is within the realm of possibilities and within the scope of the model. O B. No-it does not make sense because a y-value of 10 is outside the scope of the model
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Is there a relation between the age difference between husband/wives and the percent of a country that is literate? Researchers found the least-squares regression between age difference (husband age minus wife age), y, and literacy rate
(percent of the population that is literate), x, is y= -0.0489x + 6.7. The model applied for 20 sxs 100. Complete parts (a) through (e) below.
(a) Interprel the slope. Select the correct choice below and fill in the answer box to complete your choice.
For every unit increase in
V the
v talls by units, on average.
(Type an integer or decimal. Do not round.)
(b) Does it make sense to interpret the y-intercept? Explain. Choose the correct answer below.
O A. Yes-t makes sense to interpret the y-intercept because an x-value of 0 is within the realm of possibilities.
O B. No-t does not make sense to interpret the y-intercept because an x-value of 0 is impossible.
OC. No-t does not make sense to interpret the y-intercept because a y-value of 0 is outside the scope of the model.
O D. No-it does not make sense to interpret the y-intercept because an x-value of 0 is outside the scope of the model.
O E No-it does not make sense to interpret the y-intercept because a y-value of 0 is impossible.
(c) Predict the age difference between husband/wife in a country where the literacy rate is 45 percent.
years (Round to one decimal place as needed.)
(d) Would it make sense to use this model to predict the age difference between husband/wife in a country where the literacy rate is 10%?
O A. Yes-it makes sense because a y-value of 10 is within the realm of possibilities and within the scope of the model.
O B. No-it does not make sense because a y-value of 10 is outside the scope of the model.
O C. Yes-it makes sense because an x-value of 10 is within the realm of possibilities and within the scope of the model.
O D. No-it does not make sense because an x-value of 10 is outside the scope of the model.
(e) The literacy rate in a country is 97% and the age difference between husbands and wives is 1 year. Is this age difference above or below the average age difference among all countries whose literacy rate is 97%? Select the correct choi
below and fill in the answer box to complete your choice.
IRound tn one decmal nlace se needed
O Time Remaining: 02:13:33

Transcribed Image Text:Is there a relation between the age difference between husband/wives and the percent of a country that is literate? Researchers found the least-squares regression between age difference (husband age minus wife age), y, and literacy rate
(percent of the population that is literate), x, is y = -0.0489x + 6.7, The model applied for 20 sxs 100. Complete parts (a) through (0) below.
(b) Does it make sense to interpret the y-intercept? Explain. Choose the correct answer below.
O A. Yes-t makes sense to interpret the y-intercept because an x-value of O is within the realm of possibilities.
OB. Not does not make sense to interpret the y-intercept because an x-value of 0 is impossible.
OC. No-t does not make sense to interpret the y-intercept because a y-value of 0 is outside the scope of the mode
O D. No-t does not make sense to interpret the y-intercept because an x-value of 0 is outside the scope of the model.
OE Not does not make sense to interpret the y-intercept because a y-value of O is impossible.
(c) Predict the age difference between husband/wife in a country where the literacy rate is 45 percent.
Dyears (Round
one decimal place as needed.)
(d) Would it make sense to use this model to predict the age difference between husband/wife in a country where the literacy rate is 10%?
OA. Yes-t makes sense because a y-value of 10 is within the realm of possibilities and within the scope of the model.
O B. No-t does not make sense because a y-value of 10 is outside the scope of the model.
O C. Yes-it makes sense because an x-value of 10 is within the realm of possibilities and within the scope of the model.
O D. NoHt does not make sense because an x-value of 10 is outside the scope of the model.
(e) The literacy rate in a country is 97% and the age difference between husbands and wives is 1 year. Is this age difference above or below the average age difference among all countries whose literacy rate is 97%? Select the correct choice
below and fill in the answer box to complete your choice.
(Round to one decimal place as needed.)
O A. Abovethe average age difference among all countries whose literacy rate is
% is
years.
O B. Below-the average age difference among all countries whose literacy rate is 97% is
years.
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