Con?dence interval for average daily demand for milk

Reference no: EM13968631

1. The Food and Drug Administration (FDA) needs to estimate the average content of an additive in a given food product. A random sample of 75 portions of the product gives x = 8.9 units and s = 0.5 unit. Give a 95% con?dence interval for the average number of units of additive in any portion of this food product.

2. The management of a supermarket needs to make estimates of the average daily demand for milk. The following data are available (number of half-gallon con- tainers sold per day): 48, 59, 45, 62, 50, 68, 57, 80, 65, 58, 79, 69. Assuming that this is a random sample of daily demand, give a 90% con?dence interval for average daily demand for milk.

Reference no: EM13968631

Questions Cloud

Con?dence interval for population proportion : According to BusinessWeek, many Japanese consider their cell phones toys rather than tools.14 If a random sample of 200 Japanese cell phone owners reveals that 80 of them consider their device a toy, calculate a 90% con?dence interval for the pop..

What to avoid in a negative message : After reading chapter 17 in the e-book, write two substantive paragraphs on what to avoid in a negative message and what to maintain

Con?dence interval for proportion of people : Give a 99% con?dence interval for the proportion of people in the given age group who may be successfully treated with the facial cream.

Consumption of fuel by a delivery truck : The data on the daily consumption of fuel by a delivery truck, in gallons, recorded during 25 randomly selected working days, are as follows:

Con?dence interval for average daily demand for milk : The following data are available (number of half-gallon containers sold per day): 48, 59, 45, 62, 50, 68, 57, 80, 65, 58, 79, 69. Assuming that this is a random sample of daily demand, give a 90% con?dence interval for average daily demand for mil..

Average number of years of experience : A random sample of 28 executives gives x = 6.7 years and s = 2.4 years. Give a 99% con?dence interval for the average number of years of experience for all executives in this branch.

Estimate the average amount of an account : An accountant wants to estimate the average amount of an account of a ser- vice company. A random sample of 46 accounts yields x = $16.50 and s = $2.20. Give a 95% con?dence interval for the average amount of an account.

How do you perceive changes in social stereotypes : How do you perceive changes in social stereotypes, issues, and judgments regarding sexualities as potentially impacting changes in friendship, in the relationships, cultural expressions, and understandings of friendships

Con?dence interval for the average transit time : A transportation company wants to estimate the average length of time goods are in transit across the country. A random sample of 20 shipments gives x = 2.6 days and s = 0.4 day. Give a 99% con?dence interval for the average transit time.

User Account

All Pages