Suppose that BC financial ald alots a textbook stipend by claiming that the average textbook at BC bookstore costs $ 78.08. You want to test this claim. The null and alternative hypothesis in symbols would be: O Ho:ps 78.08 Hp> 78.08 O Ho:aS 78.08 Hp> 78.08 O Ho:p 78.08 Hip# 78.08 O Ho:p 278.08 H:p< 78.08 O Hạ: 2 78.08 H:p<78.08 O Ho:u = 78.08 H:p # 78.08 The null hypothesis in words would be: O The average price of all textbooks from the store is $ 78.08 O The average price of textbooks in a sample is $ 78.08 O The proportion of all textbooks from the store that are less than 78.08 is equal to 50%6 O The average of price of all textbooks from the store is greater than $ 78.08. O The average of price of all textbooks from the store is less than $ 78.08. Based on a sample of 150 textbooks at the store, you find an average of 88.08 and a standard deviation of 21.2. The point estimate is: (to 3 decimals) The 95 % confidence interval (use z*) is: to (to 3 decimals) Based on this we: O Reject the null hypothesis O Fail to reject the null hypothesis

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### Hypothesis Testing Exercise

**Scenario:**
Suppose that BC financial aid allots a textbook stipend by claiming that the average textbook at the BC bookstore costs $78.08. You want to test this claim.

---

**Question 1:**
**The null and alternative hypothesis in symbols would be:**

- \( H_0: p \leq 78.08 \)
  \( H_1: p > 78.08 \)

- \( H_0: \mu \leq 78.08 \)
  \( H_1: \mu > 78.08 \)

- \( H_0: \mu = 78.08 \)
  \( H_1: \mu > 78.08 \)

- \( H_0: p = 78.08 \)
  \( H_1: p \neq 78.08 \)

- \( H_0: \mu = 78.08 \)
  \( H_1: \mu \neq 78.08 \)

---

**Question 2:**
**The null hypothesis in words would be:**

- The average price of all textbooks from the store is $78.08

- The average price of textbooks in a sample is $78.08

- The proportion of all textbooks from the store that are less than 78.08 is equal to 50%

- The average price of all textbooks from the store is greater than $78.08

- The average price of all textbooks from the store is less than $78.08

---

**Scenario:**
Based on a sample of 150 textbooks at the store, you find an average of 88.08 and a standard deviation of 21.2.

---

**Question 3:**
**Calculations:**

- The point estimate is: [_____] (to 3 decimals)

- The 95% confidence interval (use z*) is: [_____] to [_____] (to 3 decimals)

---

**Question 4:**
**Conclusion:**

Based on this, we:

- Reject the null hypothesis

- Fail to reject the null hypothesis

---

### Explanation:

This exercise guides you through the process of hypothesis testing regarding the average cost of textbooks at a bookstore. You are tasked with forming null and alternative hypotheses, and then calculating point estimates and confidence intervals to determine the validity of the given claim based on sample data. Use this to
Transcribed Image Text:### Hypothesis Testing Exercise **Scenario:** Suppose that BC financial aid allots a textbook stipend by claiming that the average textbook at the BC bookstore costs $78.08. You want to test this claim. --- **Question 1:** **The null and alternative hypothesis in symbols would be:** - \( H_0: p \leq 78.08 \) \( H_1: p > 78.08 \) - \( H_0: \mu \leq 78.08 \) \( H_1: \mu > 78.08 \) - \( H_0: \mu = 78.08 \) \( H_1: \mu > 78.08 \) - \( H_0: p = 78.08 \) \( H_1: p \neq 78.08 \) - \( H_0: \mu = 78.08 \) \( H_1: \mu \neq 78.08 \) --- **Question 2:** **The null hypothesis in words would be:** - The average price of all textbooks from the store is $78.08 - The average price of textbooks in a sample is $78.08 - The proportion of all textbooks from the store that are less than 78.08 is equal to 50% - The average price of all textbooks from the store is greater than $78.08 - The average price of all textbooks from the store is less than $78.08 --- **Scenario:** Based on a sample of 150 textbooks at the store, you find an average of 88.08 and a standard deviation of 21.2. --- **Question 3:** **Calculations:** - The point estimate is: [_____] (to 3 decimals) - The 95% confidence interval (use z*) is: [_____] to [_____] (to 3 decimals) --- **Question 4:** **Conclusion:** Based on this, we: - Reject the null hypothesis - Fail to reject the null hypothesis --- ### Explanation: This exercise guides you through the process of hypothesis testing regarding the average cost of textbooks at a bookstore. You are tasked with forming null and alternative hypotheses, and then calculating point estimates and confidence intervals to determine the validity of the given claim based on sample data. Use this to
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