In a survery of 258 households, a Food Marketing Institute found that 151 households spend more than $125 a week on groceries. To find the 90% confidence interval for the true proportion of the households that spend more than $125 a week on groceries, you need to use which one of the following calculators? Two Independent Sample Means Comparison Given Statistics Confidence Interval for a Population Proportion Chi-Square Test for Goodness of Fit Hypothesis Test for a Population Proportion Two Independent Sample Means Comparison Given Data Hypothesis Test for a Population Mean Given Statistics One-Way ANOVA Confidence Interval for a Population Mean Given Data Two Independent Proportions Comparison Hypothesis Test for a Population Mean Given Data Two Dependent Sample Means Comparison Given Data Chi-Square Test for Independence Confidence Interval for a Population Mean Given Statistics Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. Confidence interval = Express the same answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. < p < Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places.p = ±

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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In a survery of 258 households, a Food Marketing Institute found that 151 households spend more than $125 a week on groceries. To find the 90% confidence interval for the true proportion of the households that spend more than $125 a week on groceries, you need to use which one of the following calculators?

Two Independent Sample Means Comparison Given Statistics
Confidence Interval for a Population Proportion
Chi-Square Test for Goodness of Fit
Hypothesis Test for a Population Proportion
Two Independent Sample Means Comparison Given Data
Hypothesis Test for a Population Mean Given Statistics
One-Way ANOVA
Confidence Interval for a Population Mean Given Data
Two Independent Proportions Comparison
Hypothesis Test for a Population Mean Given Data
Two Dependent Sample Means Comparison Given Data
Chi-Square Test for Independence
Confidence Interval for a Population Mean Given Statistics

Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.
Confidence interval =

Express the same answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. < p <

Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places.p = ±

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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