51. A doctor claims that the average woman is not more than 63 inches tall. A...

Question

Question

Answer 1

Answer #1

(1) The null hypothesis, H0: μ ≤ 63 inches

The alternative hypothesis, H1: μ > 63 inches

Decision: We reject the null hypothesis.

Final conclusion: There is sufficient evidence to warrant rejection of the claim that the average woman is not more than 63 inches tall.

(2) The confidence interval is (0.308, 0.588)

The lower limit = p̂ – E = 0.308

The upper limit = p̂ + E = 0.588

The point estimate for estimating the true proportion of employees who prefer that plan is p̂ = (0.308+0.588)/2 = 0.448

Answer 2

Similar Homework Help Questions

People claim that women say more words per day than men. Estimates claim that a woman...

People claim that women say more words per day than men. Estimates claim that a woman uses roughly 20,000 words per day, while a man uses approximately 7,000. To investigate this, a researcher recorded conversations of male college students over a 5-day period. The results are as follows: 7220 13932 4727 10419 9258 9717 10728 5265 12215 9944 7979 12252 9307 9086 10780 3357 The researcher believes that many use more than 7,000 words per day. a) State the problem in your...
1. You own a small storefront retail business and are interested in determining the average amount...

1. You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 8 customers and find that the average dollar amount spent per transaction per customer is $106.745 with a standard deviation of $13.7164. Create a 95% confidence interval for the true average spent on all customers per transaction. Question 1 options: 1)...