Question: Find the 95% confidence interval for the difference between the means in Example 9-1. Example 9-1. A study using two random groups of 40 men

Find the 95\% confidence interval for the difference between the means in Example 9-1.

Example 9-1.

A study using two random groups of 40 men and 40 women found that the average daily intake of sodium for men was 3653 milligrams and 3482 milligrams for women. Assume that the population standard deviation from previous studies is 324 milligrams for men and 287 milligrams for women. At \(\alpha=0.05\), can it be concluded that there is a significant difference in the average sodium intake between the groups?

Step by Step Solution

★★★★★

3.42 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Substitute in the formu... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Elementary Statistics A Step By Step Approach Questions!

A study using two random groups of 40 men and 40 women found that the average daily intake of sodium for men was 3653 milligrams and 3482 milligrams for women. Assume that the population standard...

The average number of hours of television watched per week by women over age 55 is 48 hours. Men over age 55 watch an average of 43 hours of television per week. Random samples of 40 men and 40 women...

Describe the difference between growth that occurs as a result of an increase in inputs and growth that occurs as a result of an increase in output per input.

Chapter 06.01 Exercise Question 07 6.1.7 The following histogram is the distribution of the amount of time, in minutes, that some statistics students said they watched television the previous day....

STAT22000 Autumn 2017 Homework 7 All page, section, and exercise numbers below refer to the course text (OpenIntro Statistics, 3rd edition, by Diez, Barr, and Cetinkaya-Rundel.). Reading: Section...

Please help with answering practice question 1-4. chapter 18 exercise: A study compared tooth health and periodontal damage in a group of 46 young adult males with a tongue piercing and a control...

Hello, I need help with this problem, please? 1- Heart rate data for a random sample of males and females were obtained. The data are available in the accompanying table. Complete parts a and b...

I need help solving this mathematical question Question 3 The following sample data represent students scores in two replacement Math exams. Question 5 Let x represents the number of overweight men....

1.Quaker Oats are thought to be a relatively healthy brand of breakfast cereal whereas Kellogg's cereal are typically thought to be heavily laden with sugar.Suppose a researcher wishes to compare the...

Lexi Belcher picked up the monthly report that Irvin Santamaria left on her desk. She smiled as her eyes went straight to the bottom line of the report and saw the favorable variance for operating...

Two objects are balanced as in figure. The objects have identical volumes but different masses. Will the equilibrium be disturbed if the entire system is completely immersed in water? Explain.

Which type of testing is used to verify that software properly or safely handles a variety of unexpected input conditions?

Suppose you are a manager who has signed a debt contract (covenant) requiring that the current ratio (current assets divided by current liabilities) be kept above 2:1. How might this affect the...

The red face cards and the black cards numbered 29 are put into a bag. Four cards are drawn at random without replacement. Find the following probabilities: a. All 4 cards are red. b. 2 cards are red...

A drawer contains 11 identical red socks and 8 identical black socks. Suppose that you choose 2 socks at random in the dark. a. What is the probability that you get a pair of red socks? b. What is...

When 3 dice are rolled, find the probability of getting a sum of 7.

Using an example, compare and contrast simple interest and compound interest. Please make this answer unique and not like the others that have answered this question.

1. Find the random numbers generating by x3 + x2 + x + 1 using Viterbi algorithm. Is it primitive?

The following three students were honored at a local high school for securing admissions to prestigious universities. Name University Bridget Yale Minori Stanford Matthew Harvard Which of the...