Q 1. Suppose the measured value for carbon compos

ite resistors is norma

lly distributed with

Mean ? = 4700

Standard Deviation ? = 250

Given a sample size of 100 randomly selected resistors

What is the probability that the samp

le average is between 4675 and 4725 ?

Q 2. A consumer product laboratory has been asked to de

termine the overall average

number of calories per

serving for a new dessert.

The consumer testing laboratory re

ported the following results:

Sample Size = 36 servings

Sample Mean = 175 calories

Sample Standard Deviation = 12 calories

Estimate the overall average number of calorie

s per serving for the new dessert product.

Use a 95% confidence interval.

Q 3. Based on a sample of measured values, estimate the ove

rall population mean (use a 95% confidence interval).

Sample Size = 16 servings

Sample Mean = 540 calories

Sample Standard Deviation = 80 calories

ite resistors is norma

lly distributed with

Mean ? = 4700

Standard Deviation ? = 250

Given a sample size of 100 randomly selected resistors

What is the probability that the samp

le average is between 4675 and 4725 ?

Q 2. A consumer product laboratory has been asked to de

termine the overall average

number of calories per

serving for a new dessert.

The consumer testing laboratory re

ported the following results:

Sample Size = 36 servings

Sample Mean = 175 calories

Sample Standard Deviation = 12 calories

Estimate the overall average number of calorie

s per serving for the new dessert product.

Use a 95% confidence interval.

Q 3. Based on a sample of measured values, estimate the ove

rall population mean (use a 95% confidence interval).

Sample Size = 16 servings

Sample Mean = 540 calories

Sample Standard Deviation = 80 calories

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