Question

Suppose 31 pregnant women are sampled who smoke an average of 23 cigarettes per day with...

Suppose 31 pregnant women are sampled who smoke an average of 23 cigarettes per day with a variance of 100.00

A) Probability that the pregnant women will smoke an average of 20 cigarettes or more:
B) Probability that the pregnant women will smoke an average of 23 cigarettes or less:
C) Probability that the pregnant women will smoke an average of 20 to 24 cigarettes:
D) Probability that the pregnant women will smoke an average of 23 to 26 cigarettes:
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
Suppose 32 pregnant women are sampled who smoke an average of 21 cigarettes per day with...
Suppose 32 pregnant women are sampled who smoke an average of 21 cigarettes per day with a variance of 100.00. a) What is the probability that the pregnant women will smoke an average of 20 cigarettes or more? probability =   b) What is the probability that the pregnant women will smoke an average of 23 cigarettes or less? probability =   c) What is the probability that the pregnant women will smoke an average of 19 to 24 cigarettes? probability =  ...
Suppose 33 pregnant women are sampled who smoke an average of 23 cigarettes per day with...
Suppose 33 pregnant women are sampled who smoke an average of 23 cigarettes per day with a standard deviation of 10. a) What is the probability that the pregnant women will smoke an average of 19 cigarettes or more? probability = b) What is the probability that the pregnant women will smoke an average of 23 cigarettes or less? probability = c) What is the probability that the pregnant women will smoke an average of 19 to 23 cigarettes? probability...
Suppose 33 pregnant women are sampled who smoke an average of 20 cigarettes per day with...
Suppose 33 pregnant women are sampled who smoke an average of 20 cigarettes per day with a variance of 81.00. a) What is the probability that the pregnant women will smoke an average of 21 cigarettes or more? probability =   b) What is the probability that the pregnant women will smoke an average of 22 cigarettes or less? probability =   c) What is the probability that the pregnant women will smoke an average of 19 to 23 cigarettes? probability =  ...
Among a random sample of 37 smokers, the average number of cigarettes smoked per day per...
Among a random sample of 37 smokers, the average number of cigarettes smoked per day per person is 22.0 with a standard deviation of 10.8. Perform a test of significance to determine if it is likely that on average smokers will smoke more than 17 cigarettes a day. a) H_0: mu (=, >, <, or not equal to)  17 H_a: mu (=, >, <, or not equal to)  17 b) Is the CLT for means valid? (yes/no) c) Calculate the test statistic  (use...
Suppose that 55% of all women that use a pregnancy test really are pregnant. Additionally, suppose...
Suppose that 55% of all women that use a pregnancy test really are pregnant. Additionally, suppose that a pregnancy test accurately indicates that a woman was pregnant (+) 99% of the time and accurately indicates that a woman wasn’t pregnant (-) 99.2% of the time. What is the probability someone who gets a positive (+) reading really is pregnant? a. 0.55 b. 0.9045 c. 0.99 d. 0.992 e. 0.9934
Suppose a researcher wishes to conduct a health survey in order to estimate the average number...
Suppose a researcher wishes to conduct a health survey in order to estimate the average number of cigarettes smoked per day by individuals living in the city of Toronto. Suppose that she uses a map of the city that shows each city block in detail. She plans to take a random sample of city blocks and then measures number of cigarettes smoked per day by individuals living in the sampled blocks. What is the target population? All individuals who smoke...
Previously, 5​% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that...
Previously, 5​% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 5​% today. She randomly selects 145 pregnant mothers and finds that 4 of them smoked 21 or more cigarettes during pregnancy. Test the​ researcher's statement at the α=0.05 level of significance. What are the null and alternative​ hypotheses? H0​:p =0.05 versus H1​: p <0.05 ​(Type integers or decimals. Do not​ round.)...
A comparison was made between number of cigarettes smoked in a day by a sample of...
A comparison was made between number of cigarettes smoked in a day by a sample of females and a sample of males. Sex female male N 32 18 Mean 6.74 4.32 StDev 7.36 5.52 SE Mean 1.3 1.3 (a) To start, we can write n1 = 32. Identify each of the following, choosing from the numbers 18, 6.74, 4.32, 7.36, or 5.52 to fill in each of the blanks. n2 = s1 = s2 = x1 = x2 = (b)...
Previously, 4​% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that...
Previously, 4​% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 4​% today. She randomly selects 125125 pregnant mothers and finds that 4 of them smoked 21 or more cigarettes during pregnancy. Test the​ researcher's statement at the alpha equals 0.05α=0.05 level of significance. What are the null and alternative​ hypotheses? Upper H 0H0​: muμ equals= nothing versus Upper H 1H1​: muμ...
The average employee in the U.S.A. spends μ = 23 minutes commuting to work each day....
The average employee in the U.S.A. spends μ = 23 minutes commuting to work each day. Assume that the distribution of commute times is normal with a standard deviation of σ = 8 minutes. (a) What proportion of U.S. employees spend less than 15 minutes a day commuting? (b) What is the probability of randomly selecting an employee who spends more than 35 minutes commuting each day?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT