2229 Questions for the topic statistics

17h

margin of error question
a 99% confidence interval for the mean weight of bags of potatoe chips packed by a machine was found to be from 15.94 oz to 16.08oz. obtain the margin of error?
Follows • 1
Expert Answers •0

17h

A preliminary sample of holiday shoppers
1.     A preliminary sample of holiday shoppers revealed that the standard deviation of the amount of money they are planning to spend on gifts during the coming holiday season is $68.... more
Follows • 1
Expert Answers •0

18h

What would be the lower control limit
What would be the lower control limit for a three standard error with a population mean of 40, a standard deviation of 1.8 and a sample size of 100?
Follows • 1
Expert Answers •0

19h

Construct a confidence interval of the population proportion at the given level of confidence. x = 540​, n = 1200, 95​% confidence
The answer should look something like this:There is a 95​% confidence that the proportion of successes in the sample is between (blank) and (blank).
Follows • 1
Expert Answers •0

19h

An interactive poll found that 394 of 2,201 adults aged 18 or older have at least one tattoo.

​(a) Obtain a point estimate for the proportion of adults who have at least one tattoo.​(b) Construct a 95​% confidence interval for the proportion of adults with at least one tattoo.​(c) Construct... more
Follows • 1
Expert Answers •0

19h

A major producer of ice cream would like to test the hypothesis that the average American consumes more than 17 ounces if ice cream per month. A random sample of 15 Americans was

A major producer of ice cream would like to test the hypothesis that the average American consumes more than 17 ounces if ice cream per month. A random sample of 15 Americans was found to consume... more
Follows • 1
Expert Answers •0

19h

Suppose that Medicare would like to test the hypothesis that the average monthly rate for​ one-bedroom assisted-living facility is
Suppose that Medicare would like to test the hypothesis that the average monthly rate for​ one-bedroom assisted-living facility is equal to​ $3,300. A random sample of 12​ assisted-living... more
Follows • 1
Expert Answers •0

22h

Chi Square Goodness of Fit
Use the following information to answer the next questions: A moving company believes that people moved in the same amounts regardless of the season. They look at their previous moves based on the... more
Follows • 1
Expert Answers •0

1d

An exponential probability distribution has lambda equal to 17 customers per hour. Find
An exponential probability distribution has lambda equal to 17 customers per hour. Find the following probabilities.​a) What is the probability that the next customer will arrive within the next... more
Follows • 1
Expert Answers •0

1d

Customers arrive at a localributioe following time frames. ​a) What is the probab
Customers arrive at a local ATM at an average rate of 18 per hour. Assume the time between arrivals follows the exponential probability distribution. Determine the probability that the next... more
Follows • 1
Expert Answers •0

2d

Stats homework help!
Assume that when adults with smartphones are randomly​ selected, 57​% use them in meetings or classes. If 13 adult smartphone users are randomly​ selected, find the probability that fewer than 4 of... more
Follows • 1
Expert Answers •0

3d

Find zFind z such that 23% of the area

Find z such that 23% of the area under the standard normal curve lies to the right of z. (Round your answer to two decimal places.)
Follows • 1
Expert Answers •1
E5abab84 d950 4050 ac29 c61db1179726

3d

Halp! Pleaseeeeeee
Express the confidence interval 0.2220.222less than<pless than<0.8880.888 in the form ModifyingAbove p with caret plus or minus Upper Ep±E.
Follows • 1
Expert Answers •0

3d

(Statistics?) How many combinations can add up to 41 or more?
There are a set of 3 numbers. Each number can range between 12 - 15. How many unique combinations (of the 64 possible?) can add up to a sum of 41 or higher? If possible, please provide the formula... more
Follows • 1
Expert Answers •2
E5abab84 d950 4050 ac29 c61db1179726
7aa2cd26 7a4f 4eba b621 60971dbca7dc

3d

statistics and probabilty
After being rejected for employment, Kim Kelly learns that the Bellevue Credit Company has hired only three women among the last 22 new employees. She also learns that the pool of applicants is... more
Follows • 1
Expert Answers •0

3d

statistics and probabilty
The Wilson family was one of the first to come to the U.S. They had 8 children. Assuming that the probability of a child being a girl is .5, find the probability that the Wilson family had:at least... more
Follows • 1
Expert Answers •0

3d

statistics and probability
A small regional carrier accepted 15 reservations for a particular flight with 14 seats. 8 reservations went to regular customers who will arrive for the flight. Each of the remaining passengers... more
Follows • 1
Expert Answers •0

3d

statistics and probabilty
According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. You randomly... more
Follows • 1
Expert Answers •1
E5abab84 d950 4050 ac29 c61db1179726

3d

statistics and probability
The television show Pretty Betty has been successful for many years. That show recently had a share of 19, meaning that among the TV sets in use, 19% were tuned to Pretty Betty. Assume that an... more
Follows • 1
Expert Answers •0

3d

statistics and probability
Assume that a procedure yields a binomial distribution with a trial repeated n=5 times. Use some form of technology to find the probability distribution given the probability p=0.547 of success on... more
Follows • 1
Expert Answers •0

4d

42​% use them in meetings or classes. If 8 adult smartphone users are randomly​ selected, find the probability that at least 4 of them use their smartphones in meetings or classes.
Follows • 1
Expert Answers •1
E5abab84 d950 4050 ac29 c61db1179726

4d

A food safety guideline is that the mercury in fish should be below 1part per million​ (ppm).

A food safety guideline is that the mercury in fish should be below 1 part per million​ (ppm). Listed below are the amounts of mercury​ (ppm) found in tuna sushi sampled at different stores in a... more
Follows • 0
Expert Answers •0

4d

Statistics Problem Help
Martha starts saving for her retirement by making monthly deposits into a retirement account whose annual rate is 3.7%. She plans to retire in 24 years with an amount of money that has the same... more
Follows • 1
Expert Answers •0

4d

Urgent Math Problem Help!!
Jack borrows $28788 to pay for a car. The loan carries an annual rate of 4.6% and he wants to be debt free in 5 years by making biweekly payments (26 per year). How much interest will he pay on... more
Follows • 1
Expert Answers •0

4d

You draw two cards at random from a standard deck. What is the probability of drawing at least one diamond?
Follows • 1
Expert Answers •1
E5abab84 d950 4050 ac29 c61db1179726
1 3 4 5 6 7 … 90

Still have a question? Ask your own and get expert help!