A student wanted to know if how much money people spent permonth on beer based...

A student wanted to know if how much money people spent per month on beer based on their income. Therefore, he asked 7 random people at Meijer their income and monthly beer spending. The following table includes the responses: Income Spent on Beer 1 17500 160 2 28000 130 3 50000 120 4 55000 125 5 65000 130 6 80000 80 7 100000 75 Mean 56500 117.1429 What is the regression equation what does the R2 coefficient of determination indicate? 32. Given a correlation coefficient (r) of 0.7216, mean of x-bar = 140.5, standard deviation of x (sx) = 6.4, mean of y-bar = 128.3, and standard deviation of y (sy) = 8.2. Find the slope of the regression line (2 pts). Find the y-intercept of the line

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orchestra answered 2 years ago

A student wanted to know if how much money people spent per month on beer based...

A student wanted to know if how much money people spent per month on beer based on their income. Therefore, he asked 7 random people at Meijer their income and monthly beer spending. The following table includes the responses Income Spent on Beer 1 17500 160 2 28000 130 3 50000 120 4 55000 125 5 65000 130 6 80000 80 7 100000 75 Mean 56500 117.1429 What is the coefficient of correlation?

In a survey, 17 people were asked how much they spent on their child's last birthday...

In a survey, 17 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $34 and standard deviation of $8. Find the margin of error at a 95% confidence level. Give your answer to two decimal places.

In a survey, 14 people were asked how much they spent on their child's last birthday...

In a survey, 14 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $41 and standard deviation of $12. Construct a confidence interval at a 99% confidence level.

In a survey, 24 people were asked how much they spent on their child's last birthday...

In a survey, 24 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $31 and standard deviation of $13. Construct a confidence interval at a 80% confidence level.

In a survey, 18 people were asked how much they spent on their child's last birthday...

In a survey, 18 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $33 and standard deviation of $5. Construct a confidence interval at a 95% confidence level. Give your answers to one decimal place. ±±

1. In a survey, 20 people were asked how much they spent on their child's last...

1. In a survey, 20 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $43.1 and standard deviation of $9.4. Construct a confidence interval at a 90% confidence level. Express your answer in the format of ¯xx¯ ±± Error. $ ±± $ 2. The body temperatures in degrees Fahrenheit of a sample of 5 adults in one small town are: 97.7 98.4 96.4 96.7 99.2 Assume body...

In a survey, 32 people were asked how much they spent on their child's last birthday...

In a survey, 32 people were asked how much they spent on their child's last birthday gift. The results were roughly shaped as a normal curve with a mean of $39 and standard deviation of $6. Find the margin of error at a 98% confidence level.

In a survey, 25 people were asked how much they spent on their child's last birthday...

In a survey, 25 people were asked how much they spent on their child's last birthday gift. The results were roughly shaped as a normal curve with a mean of $40 and standard deviation of $6. Construct a confidence interval at a 98% confidence level. Give your answers to one decimal place. ± Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She randomly selects a sample of 75 cookies and finds...

In a survey, 26 people were asked how much they spent on their child's last birthday...

In a survey, 26 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $42 and standard deviation of $7. Construct a confidence interval at a 90% confidence level. Give your answers to one decimal place and Interpret your confidence interval in the context of this problem.

In a survey, 20 people were asked how much they spent on their child's last birthday...

In a survey, 20 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $37 and a standard deviation of $9. Find the margin of error at a 95% confidence level. Give your answer to two decimal places.

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