Question

A data set lists weights​ (lb) of plastic discarded by households. The highest weight is 5.15...

A data set lists weights​ (lb) of plastic discarded by households. The highest weight is 5.15 ​lb, the mean of all of the weights is x overbarequals2.186 ​lb, and the standard deviation of the weights is sequals1.733 lb.

a. What is the difference between the weight of 5.15 lb and the mean of the​ weights?

b. How many standard deviations is that​ [the difference found in part​ (a)]?

c. Convert the weight of 5.15 lb to a z score.

d. If we consider data speeds that convert to z scores between minus2 and 2 to be neither significantly low nor significantly​ high, is the weight of 5.15 lb​ significant?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

a. What is the difference between the weight of 5.15 lb and the mean of the​ weights?

Mean of weight is given by 2.186.

The difference between the weight of 5.15 lb and the mean of the​ weight is

(5.15 - 2.186) lbs = 2.964 lbs.

b. How many standard deviations is that​ [the difference found in part​ (a)]?

2.964lbs.

c. Convert the weight of 5.15 lb to a z score?

d. If we consider data speeds that convert to z scores between minus2 and 2 to be neither significantly low nor significantly​ high, is the weight of 5.15 lb​ significant?

It is between -2 to +2 . Therefore it is neither significantly low nor significantly​ high, is the weight of 5.15 lbs​ significant

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
A data set lists weights​ (lb) of plastic discarded by households. The highest weight is5.25​lb, the...
A data set lists weights​ (lb) of plastic discarded by households. The highest weight is5.25​lb, the mean of all of the weights is x =1.822​lb, and the standard deviation of the weights is s=1.128lb. a. What is the difference between the weight of 5.25lb and the mean of the​ weights? b. How many standard deviations is that​ [the difference found in part​ (a)]? c. Convert the weight of 5.25lb to a z score. d. If we consider weights that convert...
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed...
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 77.6 Mbps. The complete list of 50 data speeds has a mean of x overbarequals17.52 Mbps and a standard deviation of sequals21.76 Mbps. a. What is the difference between​ carrier's highest data speed and the mean of all 50 data​ speeds? b. How many standard deviations is that​ [the difference found in part​ (a)]? c. Convert the​ carrier's highest data speed to...
Will give thumbs up for correct answer. Researchers measured the data speeds for a particular smartphone...
Will give thumbs up for correct answer. Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 72.2 Mbps. The complete list of 50 data speeds has a mean of x =16.02 Mbps and a standard deviation of s=30.03 Mbps. a.What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert...
For a data set of the pulse rates for a sample of adult​ females, the lowest...
For a data set of the pulse rates for a sample of adult​ females, the lowest pulse rate is 36 beats per​ minute, the mean of the listed pulse rates is x overbarequals74.0 beats per​ minute, and their standard deviation is sequals21.3 beats per minute. a. What is the difference between the pulse rate of 36 beats per minute and the mean pulse rate of the​ females? b. How many standard deviations is that​ [the difference found in part​ (a)]?...
The weights in pounds of discarded plastic from a sample of 62 households gave a sample...
The weights in pounds of discarded plastic from a sample of 62 households gave a sample mean of ¯ x = 1.911 lbs. and a standard deviation of s = 1.065 . Using α = .05 , test the claim that the mean weight of discarded plastic from the population of households is greater than 1.8 lbs. Round all values to three decimal places where necessary. State your null and alternative hypothesese. Use \mu for μ . h 0 :...
A data set includes weights of garbage discarded in one week from 62 different households. The...
A data set includes weights of garbage discarded in one week from 62 different households. The paired weights of paper and glass were used to obtain the results shown to the right. Is there sufficient evidence to support the claim that there is a linear correlation between weights of discarded paper and​ glass? Use a significance level of α=0.05. 1 0.3731 0.3731 1 Identify critical values and test statistic
A data set includes weights of garbage discarded in one week from 62 different households. The...
A data set includes weights of garbage discarded in one week from 62 different households. The paired weights of paper and glass were used to obtain the results shown to the right. Is there sufficient evidence to support the claim that there is a linear correlation between weights of discarded paper and​ glass? Use a significance level of a=0.05. Correlation​ matrix: Variables Paper Glass Paper 1 0.1382 Glass 0.1382 1 Determine the null and alternative hypotheses. Identify the test​ statistic,...
   A particular group of men have heights with a mean of 168 cm and a...
   A particular group of men have heights with a mean of 168 cm and a standard deviation of 6 cm. Carl had a height of 175 cm. a. What is the positive difference between Carl​'s height and the​ mean? b. How many standard deviations is that​ [the difference found in part​ (a)]? c. Convert Carl​'s height to a z score. d. If we consider​ "usual" heights to be those that convert to z scores between minus2 and​ 2, is...
With a height of 67 ​in, William was the shortest president of a particular club in...
With a height of 67 ​in, William was the shortest president of a particular club in the past century. The club presidents of the past century have a mean height of 70.5 in and a standard deviation of 2.7 in. a. What is the positive difference between William​'s height and the​ mean? b. How many standard deviations is that​ [the difference found in part​ (a)]? c. Convert William​'s height to a z score. d. If we consider​ "usual" heights to...
Refer to the data set in the accompanying table. Assume that the paired sample data is...
Refer to the data set in the accompanying table. Assume that the paired sample data is a simple random sample and the differences have a distribution that is approximately normal. Use a significance level of 0.01 to test for a difference between the weights of discarded paper? (in pounds) and weights of discarded plastic? (in pounds). Household Paper Plastic 1 9.83 6.26 2 8.72 9.20 3 6.16 5.88 4 14.33 6.43 5 13.61 8.95 6 9.41 3.36 7 15.09 9.11...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT