You would like to estimate the mean price of milk (per gallon) in your city. You select a random sample of prices from different stores. The sample has a mean of 3.69 dollars and a standard deviation of 0.20 dollars. For each of the following sampling scenarios, determine which test statistic is appropriate to use when making inference statements about the population mean. (In the table, Z refers to a variable having a standard normal distribution, and t refers to a variable having a t distribution.) 4) The sample has size 85, and it is from a non-normally distributed population. (5) The sample has size 11, and it is from a population with a distribution about which we know very little.
You would like to estimate the mean price of milk (per gallon) in your city. You select a random sample of prices from different stores. The sample has a mean of 3.69 dollars and a standard deviation of 0.20 dollars. For each of the following sampling scenarios, determine which test statistic is appropriate to use when making inference statements about the population mean. (In the table, Z refers to a variable having a standard normal distribution, and t refers to a variable having a t distribution.) 4) The sample has size 85, and it is from a non-normally distributed population. (5) The sample has size 11, and it is from a population with a distribution about which we know very little.
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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Question
You would like to estimate the mean price of milk (per gallon) in your city. You select a random sample of prices from different stores. The sample has a mean of
3.69
dollars and a standard deviation of
0.20
dollars. For each of the following sampling scenarios, determine which test statistic is appropriate to use when making inference statements about the population mean.
(In the table,
Z
refers to a variable having a standard normal distribution, and
t
refers to a variable having a t distribution.)
| 4) The |
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| (5) The sample has size 11, and it is from a population with a distribution about which we know very little. |
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