Finding the critical region for Normal Distribution Hypothesis Testing on a Casio fx-CG50

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⨸ Aʙᴏᴜᴛ Tʜɪs Vɪᴅᴇᴏ ⨸ - In this video we find the critical region for testing a sample mean using Normal distribution. We test the mean against the critical region to se if there is sufficient evidence to reject the null hypothesis. In the second part, we compare this method to testing the probability against the significance level.

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📲 Cᴏɴɴᴇᴄᴛ ᴡɪᴛʜ Tʜᴇ Cᴀʟᴄᴜʟᴀᴛᴏʀ Gᴜɪᴅᴇ


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𝐁𝐮𝐲 𝐀 𝐂𝐚𝐬𝐢𝐨 𝐂𝐥𝐚𝐬𝐬𝐰𝐢𝐳 𝐟𝐱-𝟗𝟗𝟏𝐄𝐗

𝐂𝐚𝐬𝐢𝐨 𝐟𝐱-𝐂𝐆𝟓𝟎 𝐆𝐫𝐚𝐩𝐡𝐢𝐧𝐠 𝐂𝐚𝐥𝐜𝐮𝐥𝐚𝐭𝐨𝐫

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𝐁𝐥𝐮𝐞𝐇𝐨𝐬𝐭 𝐖𝐞𝐛𝐬𝐢𝐭𝐞 𝐇𝐨𝐬𝐭𝐢𝐧𝐠

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🚥 Sᴜᴘᴘᴏʀᴛ Tʜᴇ Cᴀʟᴄᴜʟᴀᴛᴏʀ Gᴜɪᴅᴇ



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[timotheospetros]

Thanks. Very clearly explained.
There's also a 3rd way for solving that last question, one which doesn't involve calculating the new value of σ.

Statistics / Test / Z / 1-Sample: Data = Variable; μ = <μ; μ0 = 20; σ = 5.5; x̅ =18.1; n = 20

Aren't Casio obliging!

[rafaelcruz]

Hi!
I have a question, when I clicked InvNorm. It does not give me the option to set the datas that ive calculated. The screen is just saying InvNormCD(), can somebody help me with this?

[tomh]

I am going to be starting my A levels from next year onwards that is if this Corona virus pandemic calms down as well as easing of lockdown measures. But I was just wondering as you mentioned in previous videos that the TI 30X pro is also allowed for A level and A level further maths exams from 2017 onwards is also the TI 36X pro calculator also okay to use as it seems similar to that of the TI 30X pro multiview calculator? It would be very useful if you can give some advice on this matter as my brother has this calculator lying around the house and my parents are seemingly not willing to spend more money on new calculators anytime soon.
Thanks,
Tom.

[marvenus]

Hi, Sir! Don’t we need to put for 2 tailed test in “area” given in question percentage of significance level and then divide it by 2?

[nerdplanet]

Great video, I was wondering what is the most advanced Casio calculator available?