The accuracy of a coin-counter machine is gauged to accept nickels with a mean diameter of millimeters 21.21 mm. A sample of 47 nickles was drawn from a reported defective coin-counter machine located near a school. The sample had a sample mean of 21.212 mm and sample standard deviation 0.01 mm. Test the claim that the mean nickel diameter accepted by this coin-counter machine is greater than 21.21 mm. Test at the 0.01 significance level. (a) Identify the correct alternative hypothesis Ha: Ομ= 21.21 Ομ< 21.21 Ομ> 21.21 Give all answers correct to 4 decimal places. (b) The test statistic value is: (c) Using the Traditional method, the critical value is: (d) Based on your answers above, do you: O Reject Ho O Fail to reject Ho (e) Explain your choice in the box below. (f) Based on your work above, choose one of the following conclusions of your test: O There is not sufficient evidence to support the claim O The sample data supports the claim O There is not sufficient evidence to warrant rejection of the claim O There is sufficient evidence to warrant rejection of the claim (g) Explain your choice in the box below.

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### Hypothesis Testing for Mean Nickel Diameter

The accuracy of a coin-counter machine is gauged to accept nickels with a mean diameter of 21.21 mm. A sample of 47 nickels was drawn from a reported defective coin-counter machine located near a school. The sample had a sample mean of 21.212 mm and sample standard deviation 0.01 mm.

#### Objective
Test the claim that the mean nickel diameter accepted by this coin-counter machine is greater than 21.21 mm. Test at the 0.01 significance level.

#### Steps for Hypothesis Testing

(a) **Identify the correct alternative hypothesis \( H_a \):**

\[
\begin{aligned}
&\mid \mu = 21.21 \\
&\mid \mu < 21.21 \\
&\mid \mu > 21.21 \\
\end{aligned}
\]

(b) **Calculate the test statistic value:**

\[
\text{The test statistic value is: } \boxed{\hspace{100pt}}
\]

(c) **Determine the critical value using the Traditional method:**

\[
\text{Using the Traditional method, the critical value is: } \boxed{\hspace{100pt}}
\]

(d) **Based on your answers above, make a decision:**

\[
\begin{aligned}
&\mid \text{Reject } H_0 \\
&\mid \text{Fail to reject } H_0 \\
\end{aligned}
\]

(e) **Explain your choice:**

\[
\boxed{\hspace{350pt}}
\]

(f) **Based on your work above, choose one of the following conclusions of your test:**

\[
\begin{aligned}
&\mid \text{There is not sufficient evidence to support the claim} \\
&\mid \text{The sample data supports the claim} \\
&\mid \text{There is not sufficient evidence to warrant rejection of the claim} \\
&\mid \text{There is sufficient evidence to warrant rejection of the claim} \\
\end{aligned}
\]

(g) **Explain your choice:**

\[
\boxed{\hspace{350pt}}
\]

Please ensure all answers are precise, accurate, and correct to 4 decimal places.
Transcribed Image Text:### Hypothesis Testing for Mean Nickel Diameter The accuracy of a coin-counter machine is gauged to accept nickels with a mean diameter of 21.21 mm. A sample of 47 nickels was drawn from a reported defective coin-counter machine located near a school. The sample had a sample mean of 21.212 mm and sample standard deviation 0.01 mm. #### Objective Test the claim that the mean nickel diameter accepted by this coin-counter machine is greater than 21.21 mm. Test at the 0.01 significance level. #### Steps for Hypothesis Testing (a) **Identify the correct alternative hypothesis \( H_a \):** \[ \begin{aligned} &\mid \mu = 21.21 \\ &\mid \mu < 21.21 \\ &\mid \mu > 21.21 \\ \end{aligned} \] (b) **Calculate the test statistic value:** \[ \text{The test statistic value is: } \boxed{\hspace{100pt}} \] (c) **Determine the critical value using the Traditional method:** \[ \text{Using the Traditional method, the critical value is: } \boxed{\hspace{100pt}} \] (d) **Based on your answers above, make a decision:** \[ \begin{aligned} &\mid \text{Reject } H_0 \\ &\mid \text{Fail to reject } H_0 \\ \end{aligned} \] (e) **Explain your choice:** \[ \boxed{\hspace{350pt}} \] (f) **Based on your work above, choose one of the following conclusions of your test:** \[ \begin{aligned} &\mid \text{There is not sufficient evidence to support the claim} \\ &\mid \text{The sample data supports the claim} \\ &\mid \text{There is not sufficient evidence to warrant rejection of the claim} \\ &\mid \text{There is sufficient evidence to warrant rejection of the claim} \\ \end{aligned} \] (g) **Explain your choice:** \[ \boxed{\hspace{350pt}} \] Please ensure all answers are precise, accurate, and correct to 4 decimal places.
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