Estimate minimum sample size to estimate true mean

Assignment Help Basic Statistics

Reference no: EM13123002

A Frozen Food Company claims that its Healthy Selection frozen TV dinners have no more than 8 grams of fat. A consumer testing agency tested a random sample of twelve such dinners and found that the mean fat content was 14.5 grams, with a standard deviation of 6.5 grams.

a. Construct a 95 percent confidence interval for the true mean grams of fat in the TV dinners.

b. Estimate the minimum sample size necessary to estimate the true mean grams of fat to within plus or minus 2 grams with 98 percent confidence.

Reference no: EM13123002

Questions Cloud

Find the probability that both selected are girls : In a second grade class containing 12 girls and 7 boys, 2 students are selected at random to give out the math papers. What is the probability that both are girls?

What volume would 305.4 grams of mercury occupy : The density of mercury (Hg, a liquid metal) is 13.6 g/mL. What volume would 305.4 grams of mercury occupy

Find relation between tolerable misstatement, inherent risk : How do the calculation and comparison to previous years of the gross margin percentage and the ratio of accounts receivable to sales are related to the conformation of accounts receivable and other tests of the accuracy of accounts receivable?

Calculate the ph of a solution : Calculate the pH of a solution made by adding 42 g of sodium acetate, NaCH3COO, to 16 g of acetic acid, CH3COOH, and dissolving in water to make 300. mL of solution.

Estimate minimum sample size to estimate true mean : Estimate the minimum sample size necessary to estimate the true mean grams of fat to within plus or minus 2 grams with 98 percent confidence.

Minimizing a bivariate function : Where x is the number of hours required by a skilled craftsperson and y is the number of hours required by a semi-skilled person. Find values of x and y that minimize the labor charge. Find the minimum labor charge.

What is the molar concentration of the ammonia : If 18.5 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia.

What was decision rule to conduct the test : Department decided to conduct the test at the 0.05 level of significance whether the modification actually increased the life of the AAA battery. What was their decision rule?

Graphing a parabola-five points : Plot the vertex and four additional points, two on each side of the vertex. Please indicate points plotted as sometimes the graph is hard to read.

User Account

All Pages