subject
Mathematics, 11.02.2021 14:00 minie66

A researcher thinks a population of fish has a mean weight of 3.4 kilograms and a standard deviation of .8 kilograms. She takes a simple random sampleof 30 fish and finds that the mean is 3 kilograms.
True or False: Using a significance level of .05, there's significant evidence
that the population mean is actually lower than 3.4 kilograms.
A. True.
B. False.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 18:00
1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need
Answers: 1
question
Mathematics, 22.06.2019 00:20
Does the construction demonstrate how to copy an angle correctly using technology a) yes the distance between points a and f was used to create circle h b) yes the distance between points f and g was used to create circle h c) no the distance between points a and f was used to create circle h d) no the distance between points f and g was used to create circle h
Answers: 3
question
Mathematics, 22.06.2019 02:00
Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i
Answers: 2
question
Mathematics, 22.06.2019 03:00
An object is accelerating at a constant rate. its velocity in feet per second as a function of time in seconds can be modeled by the linear function v(t) = 2.5t. what does the dependent variable represent for this function? a) acceleration b) distance c) slope d) velocity
Answers: 3
You know the right answer?
A researcher thinks a population of fish has a mean weight of 3.4 kilograms and a standard deviati...
Questions
question
English, 05.11.2019 05:31