Determine the mean fat content of hen eggs

Assignment Help Financial Management

Reference no: EM131869913

1. A nutrition researcher wants to determine the mean fat content of hen's eggs. She collects a sample of 40 eggs. She calculates a mean fat content of 23 grams, with a sample standard deviation of 8 grams. From these statistics she calculates a 90% confidence interval of [20.9 grams, 25.1 grams]. What can the researcher do to decrease the width of the confidence interval?

Increase the confidence level

Decrease the confidence level

Decrease the sample size

None of the above

2. Preliminary estimates suggest that about 58% of students at a state university favor implementing an honor code. To obtain a 95% confidence interval for the proportion of all students at the university favoring the honor code, what is the minimum sample size needed if the total width of the confidence interval must be less than 5 percentage points (i.e., the confidence interval should extend at most 2.5 percentage points above and below the sample proportion)?

375

264

1,498

Not enough information to determine the answer

Reference no: EM131869913

Questions Cloud

Result of a statistical test : 1.Why would many scientists be uneasy about a probability of 0.06 for the result of a statistical test?

Population of the snail calcarus porosis : It is known that a population of the snail Calcarus porosis on Kangaroo Island, South Australia, has a mean shell length of 100 mm and a standard deviation.

Realistic indication of the variance of the population : Why does the variance calculated from a sample have to be corrected to give a realistic indication of the variance of the population from which it has been take

Would primary markets exist without the existence : Describe current situations where an investor might use a limit order, stop order, market order, trade on margin, or execute a short sale.

Determine the mean fat content of hen eggs : A nutrition researcher wants to determine the mean fat content of hen's eggs. What can the researcher do to decrease the width of the confidence interval?

How did your manager deal with the tension related : How did your manager deal with the tension related to the change? If you're describing a change you'd make, how would you deal with the tension?

Organization with the goal of improving quality : A change to your organization with the goal of improving quality, how does this change relate to the vision/mission of your organization?

Design a message about dealing with a complaint : To communicate information to support others to achieve work responsibilities, design a message about dealing with a complaint by just using visuals

How your ideas or solutions to a problem : Explain how your ideas or solutions to a problem are most likely to be acted upon in your workplace

User Account

All Pages