In the past, 94% of all Hispanic grocery shoppers were women. Perhaps due to changing cultural...
In the past, 94% of all Hispanic grocery shoppers were women. Perhaps due to changing cultural values, we think that more Hispanic men are now grocery shopping. We randomly sample 689 Hispanic grocery shoppers from around the United States and 606 are women. Does this result provide enough evidence to conclude that a lower proportion of Hispanic grocery shoppers now are women? Test using a 0.05 level of significance.
What is the claim in this test? ______________________________________________________
H0: Level of significance (α): α =
HA: Type test: two-tailed left tail right tail
Specify the random variable and distribution to be used in this hypothesis test.
Calculate the p-value Draw a graph and show the p-value
Show your work and any calculator functions used.
Compare the p-value with α Decide to Reject or Fail to reject the null hypothesis
Conclusion. State your results in non-technical terms.
Homework Answers
Add Answer to:
In the past, 94% of all Hispanic grocery shoppers were women.
Perhaps due to changing cultural...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the...
Women athletes at the a certain university have a long-term
graduation rate of 67%. Over the past several years, a random
sample of 37 women athletes at the school showed that 23 eventually
graduated. Does this indicate that the population proportion of
women athletes who graduate from the university is now less than
67%? Use a 10% level of significance.
(a) What is the level of significance?
State the null and alternate hypotheses.
H0: p = 0.67;
H1: p >...
Women athletes at the a certain university have a long-term graduation rate of 67%. Over the...
Women athletes at the a certain university have a long-term
graduation rate of 67%. Over the past several years, a random
sample of 36 women athletes at the school showed that 22 eventually
graduated. Does this indicate that the population proportion of
women athletes who graduate from the university is now less than
67%? Use a 5% level of significance.
(a) What is the level of significance?
State the null and alternate hypotheses.
H0: p = 0.67;
H1: p <...
(a) For the same data and null hypothesis, is the P-value of a one-tailed test (right...
(a) For the same data and null hypothesis, is the P-value of a one-tailed test (right or left) larger or smaller than that of a two-tailed test? pick one The P-value for a one-tailed test is smaller because the two-tailed test includes the area in both tails. The P-value for a one-tailed test is larger because the two-tailed test includes the area in only one tail. The P-value for a one-tailed test is larger because the two-tailed test includes the...
1. Sample Mean: mens- 27.91 women - 31.57 2. Standard Deviation men- 0.664 women- 1.167 Sample...
1. Sample Mean: mens- 27.91 women - 31.57 2. Standard Deviation men- 0.664 women- 1.167 Sample Size mens- 32 womens- 35 Using the values that you found in numbers 1 and 2, perform the following hypothesis test. At a 10% significance level, test the claim that the women’s mean completion time is greater than ___________ (the men’s mean completion time). Ho: _________________ Ha: __________________ Label the claim. What type of test will you use? (Z-Test, T-test, or 1-ProZTest) ____________________ Where...
18 and 20 18. Grocery sales analysts have approximated that 40% of all people use coupons...
18 and 20
18. Grocery sales analysts have approximated that 40% of all people use coupons when shopping. A random sample of 150 grocery shoppers results with Sl that use coupons. To the 5% significance level whether there is sufficient evidence to show that the claim of 4012 inaccurate. Use the z-version of this hypothesis test. 19. Complete Exercise #18 using Minitab. Print out the Session Window and check the answer wil that of Exercise #18. Be certain to use...
while her husband spent 2 ½ hours picking out new speakers, a statistician decided to determine...
while her husband spent 2 ½ hours picking out new speakers, a statistician decided to determine whether the percent of men who enjoy shopping for electronic equipment is higher than the percent of women who enjoy shopping for electronic equipment. The population was Saturday afternoon shoppers. Out of 69 men, 25 said they enjoyed the activity. 7 of the 22 women surveyed claimed to enjoy the activity. Interpret the results of the survey. Conduct a hypothesis test at the 5%...
Pelican Stores market heavily to women in the 25 – 40-year age group. They consistently offer...
Pelican Stores market heavily to women in the 25 – 40-year age group. They consistently offer a mix of classic and contemporary apparel to attract shoppers in that age group. Use the Pelican Stores data to test whether the (population) mean age of a Pelican customer is less than 40. Test using a level of significance of α = 0.05. Specify the random variable and distribution to be used in this hypothesis test. Calculate the p-value Draw a graph and...
Is there a relationship between confidence intervals and two-tailed hypothesis tests? Let c be the level...
Is there a relationship between confidence intervals and two-tailed hypothesis tests? Let c be the level of confidence used to construct a confidence interval from sample data. Let α be the level of significance for a two-tailed hypothesis test. The following statement applies to hypothesis tests of the mean. For a two-tailed hypothesis test with level of significance α and null hypothesis H0: μ = k, we reject H0 whenever k falls outside the c = 1 − α confidence...
The average cost of a speeding ticket is S150. A random sample of 38 spooding ticket...
The average cost of a speeding ticket is S150. A random sample of 38 spooding ticket court cases showed that the mean cost was $152.59. At the 0.01 level of significance, is that greater than $150? The population standard deviation is $10.78. - 150 P-152.99 10498 State the hypothesis and identify the claim. H Is the test a right tail, left tail or two tailed test? At the 0.01 level of significance, the critical values c.v. Use the formula for...
Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the past 8 weeks,...
Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the
past 8 weeks, a veterinarian took the following glucose readings
from this horse (in mg/100 ml).
91
87
81
106
97
110
83
89
The sample mean is x ≈ 93.0. Let x be a random
variable representing glucose readings taken from Gentle Ben. We
may assume that x has a normal distribution, and we know
from past experience that σ = 12.5. The mean glucose level...
Women athletes at the a certain university have a long-term
graduation rate of 67%. Over the past several years, a random
sample of 37 women athletes at the school showed that 23 eventually
graduated. Does this indicate that the population proportion of
women athletes who graduate from the university is now less than
67%? Use a 10% level of significance.
(a) What is the level of significance?
State the null and alternate hypotheses.
H0: p = 0.67;
H1: p >...
Women athletes at the a certain university have a long-term
graduation rate of 67%. Over the past several years, a random
sample of 36 women athletes at the school showed that 22 eventually
graduated. Does this indicate that the population proportion of
women athletes who graduate from the university is now less than
67%? Use a 5% level of significance.
(a) What is the level of significance?
State the null and alternate hypotheses.
H0: p = 0.67;
H1: p <...
18 and 20
18. Grocery sales analysts have approximated that 40% of all people use coupons when shopping. A random sample of 150 grocery shoppers results with Sl that use coupons. To the 5% significance level whether there is sufficient evidence to show that the claim of 4012 inaccurate. Use the z-version of this hypothesis test. 19. Complete Exercise #18 using Minitab. Print out the Session Window and check the answer wil that of Exercise #18. Be certain to use...
while her husband spent 2 ½ hours picking out new speakers, a statistician decided to determine whether the percent of men who enjoy shopping for electronic equipment is higher than the percent of women who enjoy shopping for electronic equipment. The population was Saturday afternoon shoppers. Out of 69 men, 25 said they enjoyed the activity. 7 of the 22 women surveyed claimed to enjoy the activity. Interpret the results of the survey. Conduct a hypothesis test at the 5%...
The average cost of a speeding ticket is S150. A random sample of 38 spooding ticket court cases showed that the mean cost was $152.59. At the 0.01 level of significance, is that greater than $150? The population standard deviation is $10.78. - 150 P-152.99 10498 State the hypothesis and identify the claim. H Is the test a right tail, left tail or two tailed test? At the 0.01 level of significance, the critical values c.v. Use the formula for...
Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the
past 8 weeks, a veterinarian took the following glucose readings
from this horse (in mg/100 ml).
91
87
81
106
97
110
83
89
The sample mean is x ≈ 93.0. Let x be a random
variable representing glucose readings taken from Gentle Ben. We
may assume that x has a normal distribution, and we know
from past experience that σ = 12.5. The mean glucose level...
Most questions answered within 3 hours.
-
A vertical straight wire carrying an upward 26-A current exerts
an attractive force per unit length...
asked 3 minutes ago -
For the purposes of this assignment, you are to choose an
adaptive trait common to more...
asked 11 minutes ago -
Two identical flutes can play middle C (262 Hz) at 20◦C. How
many beats per second...
asked 19 minutes ago -
Potassium phosphate and calcium chloride react in a double
replacement reaction. To produce 1.0 moles of...
asked 14 minutes ago -
Sparky, Co. purchased land as a factory site for $600,000.
Sparky paid $42,000 to tear down...
asked 29 minutes ago -
A Chi-square distribution with 14 degrees of freedom is a
correct model for
Question 8 options:...
asked 58 minutes ago -
In a group of 45 mice, there are 10 that have a certain genetic
character. suppose...
asked 40 minutes ago -
Topic: Hydrogenic Atoms
The wavefunction of one of the d orbitals is proportional to sin
θ...
asked 40 minutes ago -
6. Suppose that the Bank of Canada conducts an open market
purchase of $2000 from a...
asked 55 minutes ago -
A) Suppose U=X∙Y3. Find X* and Y*.
B) Suppose U=X3∙Y. Find X* and Y*.
C) Suppose...
asked 1 hour ago -
The only quantities of good 1 that Barbara can buy are 1 unit or
zero units....
asked 53 minutes ago -
c. Node Admittance matrix and its use in different calculations
of power transmission system. Display the...
asked 1 hour ago