08/03/25

How can I explain slope-intercept form to a student who keeps mixing up m and b?
My Algebra 1 student confuses the slope (m) and y-intercept (b) in y = mx + b. Even though they can graph and solve, they don’t remember what m and b represent. What visuals or real-world examples... more
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02/05/22

Provide a suitable domain and range to complete the definition of each function. Let 𝑓(𝑥) = 2𝑥 + 3.
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12/25/21

Significance level
Five measurements of the tar content of a certain kind of cigarette yielded 14.5, 14.2, 14.4, 14.3 and 14.6 mg/cigarette. Assuming that the data are a random sample from a normal population, show... more
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12/02/21

Assume that the populations are normally distributed. Test the hypothesis σ1≠σ2 at the α=0.05 level of significance.
Please show the math used to solve the problem. Sorry some people just list answer with none of the math. thanks in advanceAssume that the populations are normally distributed. Test the hypothesis... more
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12/01/21

Help Me Fit This Regression line Pleaseee
The following table displays the mathematics test scores for a random sample of, along with their final SY16C grades.a.Fit the regression line y=a+bx to the dataand interpret the results.b.Use the... more
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10/05/20

Kenji earns $32 in 4 hours. How much does he earn per hour?
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05/12/20

Please solve this question......!
The following data give the numbers of new cars sold by Carpenters Motors Limited during a20-day sale. 8 5 12 3 9 10 6 12 8 8 4 16 10 11 7 7 3 5 9 11A.... more
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11/07/19

the sum of two numbers is 70. One number is 8 more than the other. What is the smaller number?
the sum of two numbers is 70. One number is 8 more than the other. What is the smaller number?
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11/07/19

Hypothesis testing
A manufacturer claims that each one of his products weighs 10 grams. Use your knowledge of statistics to affirm or reject his claim.
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11/05/19

Introduction to Statistics
The mean grade for Test 2 in Marquettas biology class is 73 ,and the standard deviation is 8 points. If the standard score for Marquettas test is 1.25, what is her grade?
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11/04/19

Find the null and alternative hypotheses, Type I and Type II Error and determine whether the alternative hypothesis is directional or non-directional
Samantha sees an advertisement for a new energy drink that claims to significantly increase your energy during workouts, as compared to people who drink only water during workouts. She decides to... more
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11/04/19

Find the null and alternative hypthoses, Type I and II Error, and determine whether the alternative hypothesis is directional and non-directional
You read an article online that suggests that the number of negative of negative tweets posted online about the TV show Game of Thrones significantly increased during the 2019 season, as compared... more
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09/05/19

What statistical test would i ask

I will do a test to see if those with higher rebellious scores are more likely to have a higher level of aggression.(correlation?????????)
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05/31/19

a sample of n=10 scores has a mean of m=9. One person with a score of x=0 is removed from the sample.What is the new value for the new sample mean?
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05/31/19

a sample of n=6 scores has a mean of m=13 . If one person with a score of x=3 is removed from the sample, what is the value for the new mean?
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05/13/19

Over the past decade, there has been a strong positive correlation between teacher salaries and prescription drug cost.
(a) Do you think paying teachers more causes prescription drugs to cost more? Explain.(b) What lurking variable might be causing the increase in one or both of the variables? Explain.
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05/12/19

Statistics: Margin Of Error
If n=19, ¯x(x-bar)=36, and s=9, find the margin of error at a 99% confidence level Give your answer to two decimal places.
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05/01/19

Write 2 × 100 + 9 × 1 + 7 × 1/10 + 8 × 1/1000 in standard form
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05/01/19

if 9 notebooks are $5.85 what is the unit price of the books
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04/26/19

QUESTION 18 MATH NEED ASSISTANCE ASAP PLEASE

a box contains 14 trasistors, 3 of which are defective, if 3 are selected at random, find the probability of the statments below. a. all are defective b. none are defective Question 1. The... more
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04/26/19

Avery received $80 in cash for mowing lawns she did the following with the $80 she spent 1/4 of the $80 she kept the rest of the $80 in cash how much of the $80 did Avery keep in cash
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04/19/19

Help with question
Choose at random a young adult aged 19 to 22 years. Ask their age and where they live (with their parents, in their own place, or in some other place such as a college dormitory). Here is the... more
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04/18/19

team rise over run canoed 15 3/4 miles in 2 1/4 what was their average rate of speed in miles per hour
team rise over run canoed 15 3/4 miles in 2 1/4 what was their average rate of speed in miles per hour
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04/12/19

A political candidate has asked you to conduct a poll to determine what percentage of people support her.
A political candidate has asked you to conduct a poll to determine what percentage of people support her.If the candidate only wants a 1% margin of error at a 90% confidence level, what size of... more
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04/12/19

In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length of a motor vehicle trip in the United States was 9.72 miles with a margin or error of 0.22 miles.
In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length of a motor vehicle trip in the United States was 9.72 miles with a margin or error of 0.22... more
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