In a simple random sample of 80 patients who saw a certain dentist nine patients had their teeth whitened. which interval is the 95% confidence interval for the percent of all this dentist patients who had their teeth whitened 4.4,18.2 8.4,14.2 5.5, 17.1 7.8, 14.8

The correct option is 1.

Step-by-step explanation:

The total number of patient is 80 and out of these patients 9 patients had their teeth whitened.

The confidence interval is 95%.

The probability of patient had teeth whitened is

The z-score for 95%  confidence interval is 1.96.

The confidence limit is defined as

These values are in percent.

Therefore option 1 is correct.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: