Newest statistics Questions | Wyzant Ask An Expert

Statistics

01/21/22

How large of a sample size is required?

You want to obtain a sample to estimate the average number of hours per week Nexford students work at their job while being a full-time student. Based on previous evidence, you believe the... more

Follows • 1

Answers •1

Statistics

01/21/22

How large of a sample size is required?

You want to obtain a sample to estimate the average number of hours per week community college students in the United States work at their job while being a full-time student. Based on previous... more

Follows • 1

Answers •1

Statistics

01/21/22

Find the 99% confidence interval.

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures. Assume the temperatures are normally distributed. Find the 99% confidence... more

Follows • 1

Answers •1

Statistics

01/21/22

Construct a 90% confidence interval in the form estimate+_ margin of error

In a survey 21 people were asked how much they spent on their child last birthday gift.The results were roughly bell shaped with a mean of $40a and standard deviation of $19 . Construct a 90%... more

Follows • 1

Answers •1

Statistics

01/21/22

explain the mean of the interval in a sentence

The effectiveness of a blood pressure drug in being investigated.An experiment finds that on average the reduction in systolic blood pressure is 57.6 for a sample of size 846 and standard deviation... more

Follows • 1

Answers •1

Statistics Standard Deviation

01/21/22

When dragons on planet Pern lay eggs, the eggs are either green or yellow. The biologists have observed over the years that 32% of the eggs are yellow, and the rest green.

When dragons on planet Pern lay eggs, the eggs are either green or yellow. The biologists have observed over the years that 32% of the eggs are yellow, and the rest green. Next spring the lead... more

Follows • 1

Answers •1

Statistics

01/19/22

Based on the data points of heights within a classroom if you were 70inches tall what percentile would you be in?

(63 64 61 65 63 67 68 62 73 70 66 72 62 63 62 68 66 67 72 72 66 60 64.8 62 62 63 68)

Follows • 1

Answers •1

Statistics

01/18/22

The set of data below represents a height distribution. Based on the data below what number represents the top 5% of students

(63 64 61 65 63 67 68 62 73 70 66 72 62 63 62 68 66 67 72 72 66 60 64.8 62 62 63 68)

Follows • 1

Answers •1

Statistics

01/18/22

Based on the information below if you are 70 inches what is the probability someone is at least as tall as you?

Suppose the class distribution of heights is normal (63 64 61 65 63 67 68 62 73 70 66 72 62 63 62 68 66 67 72 72 66 60 64.8 62 62 63 68)

Follows • 1

Answers •1

Statistics

01/18/22

Suppose your friend’s 8th grade sibling is 59.5 inches tall. Their class average height is 63.4 inches with a standard deviation of 2.1 inches. How does this compare to you if you were 70inches?

Follows • 1

Answers •1

Statistics

01/17/22

What is the sample? What Is the population? What is the parameter? What is the symbol for this parameter? What is the symbol for this statistics What is the statistics?

A researcher wanted to get the percentage of college students that major in business. The researcher got information from 5 college with a total of 11 thousand students and found that 1.5 thousand... more

Follows • 1

Answers •1

Statistics

01/17/22

What is the population? What is the parameter? What is the symbol for this parameter? What is the sample? What is the statistics?

A researcher wants to determine the average amount of minutes it takes for a medicine to reduce headache pain for adult.He contacted 107 but only got results from 79 of the subjects, the average... more

Follows • 1

Answers •1

Statistics Math Physics

01/14/22

How to determine What are the forces acting on bars and wires? (photo of exercise in comment)

Follows • 3

Answers •1

Statistics Math Sat Math Probability

01/14/22

How to determine the measures of position from this data below?

There are 40 students in a class and here are their... more

Follows • 1

Answers •2

Statistics

01/14/22

confidence intervals

determine the margin of error for the confidence interval for the mean 60< U<94

Follows • 1

Answers •1

Statistics

01/13/22

Suppose your friend’s 8th grade sibling is 59.5 inches tall. Their class average height is 63.4 inches with a standard deviation of 2.1 inches.

If you are 70 inches tall how do you compare to your friend’s sibling? Who is taller, relatively speaking?

Follows • 1

Answers •1

Statistics

01/13/22

What is the standardized z-score of 70 when the mean is 65.6 and the standard deviation is 3.8

after, write the interpretation of the z-score

Follows • 1

Answers •1

Statistics

01/13/22

Describe the distribution of heights such as center, unusual features, shape, spread.

63 64 61 65 63 67 68 62 73 70 66 72 62 63 62 68 66 67 72 72 66 60 64.8 62 62 63 68

Follows • 2

Answers •1

Statistics Probability

01/13/22

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

Follows • 1

Answers •1

Statistics Probability

01/13/22

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

Follows • 2

Answers •1

Statistics Probability

01/13/22

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

Follows • 1

Answers •1

Statistics Chemistry Chemical Engineering

01/12/22

Finding determinate source of error

An analyst applies the neutralization titration method to determine the amount of NaHCO3 in an antacid tablet. Before the measurement, the analyst checks the method by titrating a standard sample... more

Follows • 1

Answers •1

Statistics

01/09/22

Mean and standard deviation from percentage values - Normal distribution

Suppose in a sample of 500 observations from a normal distribution with a mean μ and a standard deviation σ, you are told that 35% of the observations are less than 2.1 and 55% of the observations... more

Follows • 2

Answers •1

Statistics Mathematics

01/09/22

A random sample of 130 human body temperatures had a mean of 98.25 degrees and a standard deviation of 0.73 degrees.

A random sample of 130 human body temperatures had a mean of 98.25 degrees and a standard deviation of 0.73 degrees. Does the data indicate that the average body temperature for healthy humans is... more

Follows • 1

Answers •1

Statistics Microsoft Excel Probability Data

01/08/22

statistics probbality data analysis

An airline is deciding how much to overbook a flight. The plane has 175 seats. Historically, 95 percent of those with a reservation will actually show up. The airline charges $500 for each seat on... more

Follows • 1

Answers •1

How large of a sample size is required?

How large of a sample size is required?

Find the 99% confidence interval.

Construct a 90% confidence interval in the form estimate+_ margin of error

explain the mean of the interval in a sentence

When dragons on planet Pern lay eggs, the eggs are either green or yellow. The biologists have observed over the years that 32% of the eggs are yellow, and the rest green.

Based on the data points of heights within a classroom if you were 70inches tall what percentile would you be in?

The set of data below represents a height distribution. Based on the data below what number represents the top 5% of students

Based on the information below if you are 70 inches what is the probability someone is at least as tall as you?

Suppose your friend’s 8th grade sibling is 59.5 inches tall. Their class average height is 63.4 inches with a standard deviation of 2.1 inches. How does this compare to you if you were 70inches?

What is the sample? What Is the population? What is the parameter? What is the symbol for this parameter? What is the symbol for this statistics What is the statistics?

What is the population? What is the parameter? What is the symbol for this parameter? What is the sample? What is the statistics?

How to determine What are the forces acting on bars and wires? (photo of exercise in comment)

How to determine the measures of position from this data below?

confidence intervals

Suppose your friend’s 8th grade sibling is 59.5 inches tall. Their class average height is 63.4 inches with a standard deviation of 2.1 inches.

What is the standardized z-score of 70 when the mean is 65.6 and the standard deviation is 3.8

Describe the distribution of heights such as center, unusual features, shape, spread.

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

Finding determinate source of error

Mean and standard deviation from percentage values - Normal distribution

A random sample of 130 human body temperatures had a mean of 98.25 degrees and a standard deviation of 0.73 degrees.

statistics probbality data analysis

Still looking for help? Get the right answer, fast.

OR

RELATED TOPICS

RELATED QUESTIONS

statistics

statistics

I need a creative ideas

RECOMMENDED TUTORS

find an online tutor