1. The mean age of lead actresses from the top grossing movies of is 29.6 years...
1. The mean age of lead actresses from the top grossing movies of is 29.6 years with a standard deviation of 6.35 years. Assume the distribution of the actresses’ ages is approximately Normal.
a) What is the probability that a single randomly
selected lead actress is older than 40 years?
b) What is the probability that 5 randomly selected actresses will
have a sample mean age younger than 20 years?
Homework Answers
Add Answer to:
1. The mean age of lead actresses from the top grossing
movies of is 29.6 years...
The mean age of lead actresses from the top grossing movies of is 29.6 years with...
The mean age of lead actresses from the top grossing movies of is 29.6 years with a standard deviation of 6.35 years. Assume the distribution of the actresses’ ages is approximately Normal. What is the probability that 5 randomly selected actresses will have a sample mean age younger than 20 years? Show work.
The following data lists the ages of a random selection of actresses when they won an...
The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (@) and (b) below. Actress (years) 31 26 28 26 38 26 25 40 29 32 Actor (years) 59 41 32 36 26 33 55 37 40...
HW9#9 Listed below are ages of actresses and actors at the time that they won an...
HW9#9 Listed below are ages of actresses and actors at the time that they won an award for the categories of Best Actress and Best Actor. Use the sample data to test for a difference between the ages of actresses and actors when they win the award. Use a 0.05 significance level. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Actress's age 19 34 23 55...
Listed below are ages of actresses and actors at the time that they won an award...
Listed below are ages of actresses and actors at the time that they won an award for the categories of Best Actress and Best Actor. Use the sample data to test for a difference between the ages of actresses and actors when they win the award. Use a 0.01 significance level. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Actress's age 17 26 24 51 30...
Do the Academy Awards involve discrimination based on age? Listed below are the ages of actresses...
Do the Academy Awards involve discrimination based on age? Listed below are the ages of actresses and actors at the times that they won Oscars in the Best Actress and Best Actor categories. the ages are listed in order, beginning with the first Academy Awards ceremony in 1928. (Note: in 1968 there was a tie in the Best Actress category, and the mean of the two ages is used; in 1932 there was a tie in the Best Actor category,...
(1 pt) Randomly selected 22 student cars have ages with a mean of 7.6 years and...
(1 pt) Randomly selected 22 student cars have ages with a mean of 7.6 years and a standard deviation of 3.4 years, while randomly selected 10 faculty cars have ages with a mean of 5.4 years and a standard deviation of 3.5 years. 1. Use a 0.05 significance level to test the claim that student cars are older than faculty cars. (a) The test statistic is (b) The critical value is (c) Is there sufficient evidence to support the claim...
The following data lists the ages of a random selection of actresses when they won an award in th...
The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. Actress left parenthesis years right parenthesis 29 25 34 27 38 26 26 45 27 36 Actor left parenthesis years right parenthesis 62...
Randomly selected 80 student cars have ages with a mean of 8 years and a standard...
Randomly selected 80 student cars have ages with a mean of 8 years and a standard deviation of 3.6 years, while randomly selected 95 faculty cars have ages with a mean of 5.4 years and a standard deviation of 3.7 years. 1. Use a 0.03 significance level to test the claim that student cars are older than faculty cars. The test statistic is The critical value is Is there sufficient evidence to support the claim that student cars are older than...
Randomly selected 20 student cars (population 1) have ages with a mean of 7 years and...
Randomly selected 20 student cars (population 1) have ages with a mean of 7 years and a standard deviation of 3.6 years, while randomly selected 22 faculty cars (population 2) have ages with a mean of 5.4 years and a standard deviation of 3.5 years. (For the purposes of this exercise, the two populations are assumed to be normally distributed.) 1. Use a 0.01 significance level to test the claim that student cars are older than faculty cars. The test...
(3 points) Randomly selected 21 student cars have ages with a mean of 7.3 years and...
(3 points) Randomly selected 21 student cars have ages with a mean of 7.3 years and a standard deviation of 3.4 years, while randomly selected 14 faculty cars have ages with a mean of 5.5 years and a standard deviation of 3.5 years. 1. Use a 0.01 significance level to test the claim that student cars are older than faculty cars (a) The test statistic is 2.32 (b) The critical value is 2.32 (c) Is there sufficient evidence to support...
The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (@) and (b) below. Actress (years) 31 26 28 26 38 26 25 40 29 32 Actor (years) 59 41 32 36 26 33 55 37 40...
(1 pt) Randomly selected 22 student cars have ages with a mean of 7.6 years and a standard deviation of 3.4 years, while randomly selected 10 faculty cars have ages with a mean of 5.4 years and a standard deviation of 3.5 years. 1. Use a 0.05 significance level to test the claim that student cars are older than faculty cars. (a) The test statistic is (b) The critical value is (c) Is there sufficient evidence to support the claim...
(3 points) Randomly selected 21 student cars have ages with a mean of 7.3 years and a standard deviation of 3.4 years, while randomly selected 14 faculty cars have ages with a mean of 5.5 years and a standard deviation of 3.5 years. 1. Use a 0.01 significance level to test the claim that student cars are older than faculty cars (a) The test statistic is 2.32 (b) The critical value is 2.32 (c) Is there sufficient evidence to support...
Most questions answered within 3 hours.
-
23. Which molecule has only covalent bonds? A. CO2 B. Al2O3 C.
Mg3N2
24. The octet...
asked 18 minutes ago -
the
total pressure for a mixture of N2O4 and NO2 is 2.20 atm. If Kp=
7.10...
asked 20 minutes ago -
Delaware Corp. prepared a master budget that included $22,385
for direct materials, $28,600 for direct labor,...
asked 17 minutes ago -
For pesticide HCB (hexachlorobenzene), its logarithmic partition
coefficient log Kow is 5.6. What would be the...
asked 20 minutes ago -
A chemist requires 0.422 mil Na2CO3 for a reaction. How many
grams does this correspond to?
asked 24 minutes ago -
If the vapor pressure of carvone is approximately 9.4 torr at 99
°C, approximately how much...
asked 43 minutes ago -
A juice bottling company is carrying out a test at 10%
significance that the mean population...
asked 55 minutes ago -
What is the reflectivity (in percent) needed to keep water at a
temperature near its freezing...
asked 57 minutes ago -
Suppose that the average surface temperature of Earth is 300K.
Assume this is uniform over its...
asked 58 minutes ago -
Draw the condensed structural formula for alkenes and alkynes or
the line-angle structural formula for cycloalkenes...
asked 58 minutes ago -
M. Laing has suggested a new arrangement of the periodic table
(J.Chem.Ed.1989, 66,
746). Answer the following...
asked 1 hour ago -
Café Michigan's manager, Gary Stark, suspects that demand for
mocha latte coffees depends on the price...
asked 1 hour ago