Question

if we have an average of 4.8 cookies per day and sigma equals 1.2, how many...

if we have an average of 4.8 cookies per day and sigma equals 1.2, how many people in a group of 100 would eat more than or equal to 3 cookies a day
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Solution :

Given that ,

mean = = 4.8

standard deviation = = 1.2

P(x 3 ) = 1 - P(x   3)

= 1 - P[(x - ) / (3 - 4.8) /1.2]

= 1 -  P(z -1.5 )  

= 1 - 0.0668 = 0.9332

probability = 0.9332*100 = 93.32 = 93.

Answer = 93 people .

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Fullerton Bakery advertises fresh baked cookies which it sells for $3.50 per lb. The demand per...
Fullerton Bakery advertises fresh baked cookies which it sells for $3.50 per lb. The demand per day for cookies follows normal distribution with mean 8 lbs and standard deviation 1 lb. If the cookies are not sold at the end of the day, it sells remaining cookies to a discount store which pays either $1.00, $1.25, $1.50, or $1.75 per lb with equal probabilities based on their requirements. Cookies cost bakery any where from $2.00 to $3.00 per lb uniformly...
How many people do we need to have in a room to make it that the...
How many people do we need to have in a room to make it that the probability of two people in the room will have the same birthday is greater than ½? (Note: Here we consider just the day and month, not the year.)
the average number of miles a person drives per day is 24. A researcher believes that...
the average number of miles a person drives per day is 24. A researcher believes that people over age 60 drives less than 24 miles per day. she selects a random sample of people over age 60 of size 49 and gets a sample mean of 22.8. if sigma= 3.5mi, at alpha .05, is there sufficient evidence that drivers over age 60 drive less than 24 miles a day?
If the average arrival rate is 10 per hour, and the average time it takes to...
If the average arrival rate is 10 per hour, and the average time it takes to help a customer is 5 minutes, then: Group of answer choices No customer will ever have to wait: we can help more customers per hour than arrive Utilization is less than 100%: we can help more customers per hour than arrive, but we may have a queue form and customers might have to wait.. None of the other answers are correct There can never...
You’ve become an influencer and are obsessed with how many views your pictures get. On average,...
You’ve become an influencer and are obsessed with how many views your pictures get. On average, you get 3022 views per post and always post exactly one picture per day. You’d like to have a month with 100000 or more total views. Find the approximate probability of this occurring in January if we assume view counts from day-to-day are independent.
Among a random sample of 37 smokers, the average number of cigarettes smoked per day per...
Among a random sample of 37 smokers, the average number of cigarettes smoked per day per person is 22.0 with a standard deviation of 10.8. Perform a test of significance to determine if it is likely that on average smokers will smoke more than 17 cigarettes a day. a) H_0: mu (=, >, <, or not equal to)  17 H_a: mu (=, >, <, or not equal to)  17 b) Is the CLT for means valid? (yes/no) c) Calculate the test statistic  (use...
You are obsessed with how many views your pictures get. On average, you get 3022 views...
You are obsessed with how many views your pictures get. On average, you get 3022 views per post and always post exactly one picture per day. You’d like to have a month with 100000 or more total views. Find the approximate probability of this occurring in January if we assume view counts from day-to-day are independent.
Suppose that it costs $200 per day to search for chanterelle mushrooms at Pt. Reyes National...
Suppose that it costs $200 per day to search for chanterelle mushrooms at Pt. Reyes National Seashore. On an average day, the total weight of mushrooms M found at Pt. Reyes is M= 100x-x^2 pounds ,where X is the number of people mushroom hunting on that day. Chanterelles can be sold for $90 per pound. How many more people will go mushroom hunting than is socially optimal?
Many people claimed that the average cost of living for grocery expenses for family with one...
Many people claimed that the average cost of living for grocery expenses for family with one or two children in the Washington D.C metropolitan is exceeded $1,200 per month. In a sample of 100 family survey undertaken in the Washington D.C metropolitan area in July 2019. The average cost and standard deviation of living for grocery expenses for family with one or two children in the Washington D.C metropolitan are found to be $1,380 and $190, respectively. Do these data...
In the United States, males between the ages of 40 and 49 eat on average 103.1...
In the United States, males between the ages of 40 and 49 eat on average 103.1 g of fat every day with a standard deviation of 4.32 g ("What we eat," 2012). Assume that the amount of fat a person eats is normally distributed. a.) State the random variable. b.) Find the probability that a man age 40-49 in the U.S. eats more than 110 g of fat every day. c.) Find the probability that a man age 40-49 in...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT