Question

In 1990, the mean height of women 20 years of age or older was 63.7 inches...

In 1990, the mean height of women 20 years of age or older was 63.7 inches based on data obtained from the Centers for Disease Control and Prevention’s Advance Data Report, No. 347. In 2020, a random sample of 45 women who are 20 years of age or older found a mean height of 63.9 inches and a sample standard deviation of 2.47 inches. Perform a complete hypothesis test to determine if women are taller in 2020 at the α = 0.10 level of significance. Need to show all work and explain everything.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Data in symbolic form

sample size =n= 45

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Several years​ ago, the mean height of women 20 years of age or older was 63.7...
Several years​ ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a random sample of 45 women who are 20 years of age or older today results in a mean height of 64.2 inches. ​ (a) State the appropriate null and alternative hypotheses to assess whether women are taller today. ​ (b) Suppose the​ P-value for this test is 0.11. Explain what this value represents. ​ (c) Write a conclusion for this...
Suppose the mean height of women age 20 years or older in a certain country is...
Suppose the mean height of women age 20 years or older in a certain country is 62.9 inches. One hundred randomly selected women in a certain city had a mean height of 63.8 inches. At the 5% significance level, do the data provide sufficient evidence to conclude that the mean height of women in the city differs from the national mean? Assume that the population standard deviation of the heights of women in the city is 3.9 inches. The standard...
the mean height of women in a country (ages 20-29) is 63.8 inches. A random sample...
the mean height of women in a country (ages 20-29) is 63.8 inches. A random sample of 60 women in this age group is selected. what is the probability that the mean height for the sample is greater than 65 inches? assume ó ?= 2.85.     the probability that the mean height for the sample is greater than 65 inches is
The mean height of women in a country​ (ages 20-29) is 63.8 inches. A random sample...
The mean height of women in a country​ (ages 20-29) is 63.8 inches. A random sample of 50 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 ​inches? Assume sigma=2.78. The probability that the mean height for the sample is greater than 65 inches is?
The mean height of women in a country (ages 20-29) is 64.2 inches. A random sample...
The mean height of women in a country (ages 20-29) is 64.2 inches. A random sample of 55 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 inches? assume σ = 2.54
The mean height of women in a country​ (ages 20-​29) is 64.2 inches. A random sample...
The mean height of women in a country​ (ages 20-​29) is 64.2 inches. A random sample of 65 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 ​inches? Assume sigma =2.88. The probability that the mean height for the sample is greater than 65 inches is _____. (round to 4 decimal places as needed).
The mean height of women in the United States (ages 20-29) is 64.2 inches with a...
The mean height of women in the United States (ages 20-29) is 64.2 inches with a standard deviation of 2.9 inches. The mean height of men in the United States (ages 20-29) is 69.4 inches with a standard deviation of 2.9 inches. What height represents the 25thpercentile for men. Above what height is considered to be the top 5% of tallest women. Suppose a man and a woman are randomly selected. Who is relatively taller for their gender if the...
The height of women ages? 20-29 is normally? distributed, with a mean of 63.9 inches. Assume...
The height of women ages? 20-29 is normally? distributed, with a mean of 63.9 inches. Assume sigmaequals2.4 inches. Are you more likely to randomly select 1 woman with a height less than 66.2 inches or are you more likely to select a sample of 10 women with a mean height less than 66.2 ?inches? Explain. LOADING... Click the icon to view page 1 of the standard normal table. LOADING... Click the icon to view page 2 of the standard normal...
Among American women aged 20 to 29 years, mean height = 64.2 inches, with a standard...
Among American women aged 20 to 29 years, mean height = 64.2 inches, with a standard deviation of 2.7 inches. A)Use Chebyshev’s Inequality to construct an interval guaranteed to contain at least 75% of all such women`s heights. Include appropriate units. B)Suppose that a random sample size of n = 50 is selected from this population of women. What is the probability that the sample mean height will be less than 63.2 inches?
The height of women ages​ 20-29 is normally​ distributed, with a mean of 63.863.8 inches. Assume...
The height of women ages​ 20-29 is normally​ distributed, with a mean of 63.863.8 inches. Assume σ equals=2.7 inches. Are you more likely to randomly select 1 woman with a height less than 65.8 inches or are you more likely to select a sample of 20 women with a mean height less than 65.8 ​inches? Explain.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT