### Average grade for all people who take a class is 83

**At** **a** 90% confidence **level**, we conclude that **your** class **is** better than **average** (83). **The** expert determines **the** **average** grade for all people who take **a** class **is** 83.

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**At** **a** 90% confidence **level**, we conclude that **your** class **is** better than **average** (83). **The** expert determines **the** **average** grade for all people who take **a** class **is** 83.

Statistics / Hypothesis Testing » 495534

**The** manager **of** **the** bank decides **to** do **a** survey among **the** **customers** **of** **his** bank and takes **a** simple random sample **of** 200 **customers** aged 18 and over.

Statistics / Hypothesis Testing / Frequentist Inference / Confidence Interval » 213760

**What** **is** **the** value **of** **the** **test** statistic? (Round **your** answer **to** 2 decimal places.)
Value **of** **the** **test** statistic=(21-20)/[**4**/sqrt(49)]=1.75
d. **What** **is** **your** **decision** regarding H0?

Statistics / Hypothesis Testing » 624340

Significance **Level**, Î±=**0.10**
Using sample data, we will **conduct** **a** paired sample t-**test** **to** **test** **the** null **hypothesis**.

Statistics / Hypothesis Testing » 503332

Compare **the** **test** statistic **to** **the** rejection region and make **a** judgment about **the** null and alternative hypotheses.
5. Interpret **the** statistical **decision** in terms **of** **the** problem.
6.

Statistics / Hypothesis Testing » 253017

**What** we do all **the** time **is** **to** prove or disprove **the** null.
d) Provide an example **of** **a** **hypothesis** **test** you could **conduct** **at** work. **What** **is** **the** measure that you will **test**?
Ho: men and women earn **the** same **income** and Ha: men earn more than women.

Statistics / Hypothesis Testing » 497675

This solution consists **of** details **of** using one sample t-**test** **to** **test** **the** claim that **the** **average** activating temperature **is** **at** least 135 degrees F.

Statistics / Hypothesis Testing / Type I and Type II Errors » 577820

Also, **the** distribution **of** **the** data should be considered.
Step **4**: Select an error **level**. **A** researcher must determine **the** p-**level** for **the** **test**.

Business / Business Management / Leadership Skills » 622360

**The** significance **level** **is** **0.10**.
From **the** above result, since P-value **is** 0.1655 which **is** large than **0.10**, we fail **to** reject null **hypothesis**.
Hence, **the** conclusion **is** that there **is** no difference between new fertilizer and old fertilizer.

Statistics / Data Collection » 624560

H0:p1-p2=0 ïƒ Null **hypothesis**
Ha:p1-p2â‰ 0 ïƒ Alternative **hypothesis**
Î±â‚Œ**0.10**
Since **the** **test** **is** **to** be carried out **at** **the** **0.10** **level** **of** significance, **the** critical values are -1.645 and +1.645.

Statistics / Hypothesis Testing » 222335