I need help with a stats problem from section 7.2 and 7.3, please help me with TI-84 calculator functions when possible? Thanks A scientist estimates that the mean nitrogen dioxide level in a city is greater than 29 parts per billion. To test this estimate, you determine the nitrogen dioxide levels for 31 randomly selected days. The results (in parts per billion) are listed to the right. Assume that the population standard deviation is 11. At α=0.04, can you support the scientist's estimate? Complete parts (a) through (e). 38 29 21 26 19 44 21 25 16 31 43 28 24 27 42 29 29 31 26 18 22 41 28 26 25 33 31 32 44 42 16 Write the correct claim mathematically and identify Ho and Ha. b) find the critical value and identify the rejection region. z0= _ (round to 2 decimal places) rejected region: z is > or < c) find the standardized test statistic z=_____(round to 2 decimal places) d) decide whether to reject or faile to reject the null hypothesis reject Ho or fail to reject Ho e) interpret the decision in the context of the original claim At the 4% significance level, there (is not or is) enough evidence to (support

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I need help with a stats problem from section 7.2 and 7.3, please help me with TI-84 calculator functions when possible? Thanks

A scientist estimates that the mean nitrogen dioxide level in a city is greater than

parts per billion. To test this estimate, you determine the nitrogen dioxide levels for 31 randomly selected days. The results (in parts per billion) are listed to the right. Assume that the population standard deviation is

11.

α=0.04,

can you support the scientist's estimate? Complete parts (a) through (e).

38 29 21 26 19 44 21 25 16 31 43 28 24 27 42 29 29 31 26 18 22 41 28 26 25 33 31 32 44 42 16

Write the correct claim mathematically and identify Ho and Ha.

b) find the critical value and identify the rejection region.

z0= _______________ (round to 2 decimal places)

rejected region: z is > or <

c) find the standardized test statistic

z=___________________(round to 2 decimal places)

d) decide whether to reject or faile to reject the null hypothesis

reject Ho or fail to reject Ho

e) interpret the decision in the context of the original claim

At the 4% significance level, there (is not or is) enough evidence to (support or reject) the scientist's claim that the mean nitrogen dioxide level in the city is greater than 29 parts per billion

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