Question: A consumer survey indicates that the average household spends =$155 on groceries each week. The distribution of spending amounts is approximately normal with a standard

A consumer survey indicates that the average household spends =$155 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation of =$25. Based on this distribution...

1. What 2 spending amounts are the boundaries for the middle 20% of the distribution? Note: This means that there is 10% on each side of the mean. You also have to calculate 2 different X values for this example.

2. If a family spends $200 on groceries each week, would you say that they spend a lot more than the average family? Note: "A lot more" would be more than 2 standard deviations above the mean.

3. If a family spends $175 on groceries each week, would you say that they spend a lot more than the average family?

Please show work and round to two decimal places

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

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 Mathematics Questions!

Consider a student who has the choice to buy or not buy a textbook for a course. Well model this as a decision problem with one Boolean decision node, B, indicating whether the agent chooses to buy...

A consumer survey indicates that the average household spends =$155 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation of =$25. Based on...

20. A consumer survey indicates that the average household spends ( = $155 on groceries each week The distribution of spending amounts is approximately pormal with a standard deviation of o = $25....

A consumer survey indicates that the average household spends = $155 on groceries each week. The distribution of spending amounts is normal with a standard deviation of = $25. Based on this...

In a distribution with u = 85 and a o= 6.45 ... what value of X separates the top 15% of the distribution? what values of X separate the middle 60% of the distribution? what value of X is the 25th...

A consumer survey indicates that the average household spends = $185 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation of = $25. Based...

19. A consumer survey indicates that the average household spends $155 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation of $25. Based...

A consumer survey indicates that the average household spendsu = $185 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation$25. Based on this...

7. Find each of the followingprobabilities for a normal distribution. a. p ( z > 1.00) c. p ( z > 0.80) b. p ( z

21. A consumer survey indicates that the average household spends p. = $ 1 55 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation of ct =...

Royal Lawncare Company produces and sells two packaged products-Weedban and Greengrow. Revenue and cost information relating to the products follow: Product Weedban Greengrow Selling price per unit $...

On June 1, John Sullivan opened a real estate office in Hamilton called Sullivan Realty. The following transactions were completed for the month of June. Note that facsimile documents have been...

Karin has $ 8 3 , 5 5 5 in a retirement account right now. Suppose she deposits $ 3 , 0 0 0 this year and then increases that by 7 . 5 % each subsequent year. The account earns 9 . 8 % . Find her...

Question 12 0.570.5 pts lan, 37, and Isabella, 36, are married and file a joint tax return. They have one child, Ingrid (Isabella's daughter from a prior marriage and is claimed as a dependent (QC)...