How does confidence interval affect margin of error.

1 answer:

8 0

The width of the confidence interval is twice the margin of error. The lower bound of the confidence interval is the observed score minus the margin of error;

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At Pizza hut, 9% of the pizzas made last week had extra cheese. if 27 pizzas had extra cheese, how many pizzas in all were made

notka56 [123]

To solve this, we need to figure out how many times 9% goes into 100%.

100% / 9% = 11.111

Since 9% of the pizzas equaled 27 pizzas, we can multiply 27 by the amount 11.111 to get the total number of pizzas (100%).

27 * 11.11 = 299.997, rounded to the nearest whole number is 300 Pizzas

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bulgar [2K]

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In a study relating the degree of warping, in mm, of a copper plate (y) to temperature in °C (x), the following summary statisti

kipiarov [429]

Answer:

The error sum of squares is SSE=12.97

The regression sum of squares is SSR=6.430

The total sum of squares is SST=19.4

Step-by-step explanation:

Linear regression is a way "to modeling the relationship between a scalar response (or dependent variable) and one or more explanatory variables (or independent variables)".

Regression estimates are "used to describe data and to explain the relationship between one dependent variable and one or more independent variables"

The linear model is given by the following equation $Y=mx +b$ , where y is the dependent variable, x the independent variable, m the slope and b the intercept.