Question

In 1998, a random sample of 1036 americans were asked if they owned a cell phone and 881 said they owned a cell phone. find the sample proportion, rounded to two decimal places.

Answer 1

The sample proportion of Americans who reported owning a cell phone in 1998 is 0.85 when rounded to two decimal places.

Step-by-step explanation:

To calculate the sample proportion of Americans who owned a cell phone in 1998 based on the given survey data, we use the formula for the sample proportion, which is the number of individuals with the characteristic of interest divided by the total number of individuals sampled. The survey reports that 881 out of 1036 Americans said they owned a cell phone.

The sample proportion (p') is therefore calculated as:

p' = number of cell phone owners / total number surveyed = 881 / 1036

Carrying out the division, we get:

p' = 0.850193477 (exact proportion)

When rounded to two decimal places, the sample proportion is:

p' = 0.85