A researcher notes that, in a certain country, a disproportionate number of soft

Question

A researcher notes that, in a certain country, a disproportionate number of software millionaires were born around the year 1955. Is this a coincidence, or does birth year matter when gauging whether a software founder will be successful? The researcher investigated this question by analyzing the data shown in the accompanying table.

Practically interpret the estimated y-intercept and slope of the model, part

a.

Give a practical interpretation of the estimated y-intercept of the line. Select the correct choice below and, if necessary, fill in the answer box within your choice.

A.

For a decade with 0 total births in this country, the number of software millionaire birthdays is estimated be.........?

For a decade with 0 software millionaire birthdays, the total number of births in this country is estimated be....?

million.

(Round to two decimal places as needed.)

Total_Births_in_Country_(millions) Number_of_Software_Millionaire_Birthdays 28.034 2 24.687 1 31.407 10 40.633 13 38.383 8 33.224 6

Explanation / Answer

Using Minitab,

Regression Analysis: Number_of_Software_Millionaire_ versus Total_Birth_in_Country_(million

Total_Birth_in_Country_(million = 25.25 + 1.121 * Number_of_Software_Millionaire_

Variable Setting
Number_of_

Software_Millionaire_ 0

Fit SE Fit 95% CI 95% PI
25.2533 2.64600 (17.9069, 32.5998) (13.1329, 37.3738)

Correct choice is For a decade with 0 software millionaire birthdays, the total number of births in this country is estimated be 25.25

Hope this will help you. Thanks and Good Luck :-)

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