According to a study done in 2019, the average monthly expenses for cell phone loads of high school students in Manila was Php 350.00. A Statistics student claims that this amount has increased to Php 380.00 with a standard deviation of Php 77.00 for 200 students since January 2020. Is there enough evidence to support that claim? Use a 0.05 level of significance.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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what is the null hypothesis statement and alternative hypothesis statement for the second one (right side)? 

Test the hypotheses in each given situation. Draw a conclusion from
each situation presented.
The owner of a factory that sells
a particular brand of bottled fruit
juice claims that the average
capacity of their product is 250
mL. To test the claim, a consumer
According to a study done in
2019, the average monthly
expenses for cell phone loads of
high school students in Manila
was Php 350.00. A Statistics
student claims that this amount
group gets a sample of 100 such
bottles, calculates the capacity of
each bottle, and then finds the
mean capacity to be 248 mL with
a standard deviation of 5 mL. Is
has increased to Php 380.00 with
a standard deviation of Php
77.00 for 200 students since
January 2020. Is there enough
evidence to support that claim?
Use a 0.05 level of significance.
the claim true?
Transcribed Image Text:Test the hypotheses in each given situation. Draw a conclusion from each situation presented. The owner of a factory that sells a particular brand of bottled fruit juice claims that the average capacity of their product is 250 mL. To test the claim, a consumer According to a study done in 2019, the average monthly expenses for cell phone loads of high school students in Manila was Php 350.00. A Statistics student claims that this amount group gets a sample of 100 such bottles, calculates the capacity of each bottle, and then finds the mean capacity to be 248 mL with a standard deviation of 5 mL. Is has increased to Php 380.00 with a standard deviation of Php 77.00 for 200 students since January 2020. Is there enough evidence to support that claim? Use a 0.05 level of significance. the claim true?
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