A recent issue of the AARP Bulletin reported that the average weekly pay for a woman with a high school degree is $520 . Suppose you would like to determine if the average weekly pay for all working women is signicantly greater (at alpha = 0.05) than that for women with a high school degree. Using data on weekly pay for a sample of 50 working women, you obtain the following statistics: sample mean = $620, sample error = $150. Conduct the hypothesis test using the critical value approach and the p-value approach. Describe the conclusion of the hypothesis test and what that means in this context

Q: Which of the following are measures on positions of a data set? 1. the third qurtile 2. the median…

A: The third quartile, the median and the maximum measures the positions of a data set.

Q: A random sample of 250 physicians shows that there are 40 of them who make at least $400,000 a year.…

A: We have to find value of test statistics.

Q: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what…

A:

Q: Please explain how to do these questions.  Using this data set attached:  1. Consider the…

A: 1. Two surveys are made for 12-month proportion high risk drinking, between men and women , in  a.…

Q: What information is provided by calculations of the “t” test statistic?

A:

Q: he sample mean for a recent introductory psychology test was 78, and the standard deviation was 3.…

A: Given Information: Mean = 78 Standard deviation = 3 Student received a score of 82 i.e., X = 82…

Q: The distribution of heights of adult men is approximately normal. A man whose standardized height is…

A: From the given information,Considering the heights of adult men is X which is normally…

Q: statistics professor reported that the mean score in a recent quiz is 72 and the standard deviation…

A: Solution

Q: With your sample of 25 inmates, you want to test if the population mean age is different from 40 at…

A: for more information ping me    happy learning

Q: Is it worth pursuing a doctoral degree in education if you already have an undergraduate degree? One…

A: Let Population 1 be the salaries for people with doctoral degrees and Population 2 be the salaries…

Q: The scores on the Wechsler Adult Intelligence Scale are approximately Normal, with  = 100 and  = 11.…

A: The scores on the Wechsler Adult Intelligence Scale are approximately Normal

Q: Suppose you have the following data: 6, 19, 10, 14, 25, and 9. Calculate the 20th percentile. 2.…

A: The given data in part (1) is: 6, 19, 10, 14, 25, 9 The given data in part (2) is:

Q: If you have a 99% confidence that a population proportion is in the interval from a to b, what does…

A:

Q: noat question Assuming a normal curve, find the highest Z score a person could have while being in…

A: Given that  A) P(Z < a) = 32% B) P(Z < b) = 6%

Q: In 2009, it was estimated that 63% of Americans supported the death penalty. In 2014, a Rasmussen…

A: sample size(n)=943 No. of Americans supported the death penalty(x)=536 population proportion=0.63

Q: The following data lists the number of calories in 22 manufactured vanilla-flavored ice cream bars.…

A: The ith decile is given by, Di= i*(n+1)/10 th term Here n is sample size. For the above data set,…

Q: Current Year Previous Year Occupied Rooms 1,505 1,411 Total Rooms 1,750 1,700

A: Solution:- from given information x1= 1505     ,n1=1750 x2= 1411     ,n2=1700 null hypothesis…

Q: As reported in Runner's World magazine, the times of the finishers in the New York Cit km run are…

A:

Q: dentify the level of measurement of the data, and explain what is wrong with the given calculation.…

A:

Q: According to a study conducted by a statistical organization, the proportion of people who are…

A: The population is the data which includes all the observations that were used for the study. When…

Q: Which of the following is the best measure of central tendency for race? Mode:1 Mean:1.32 Median:1

A:

Q: Is it worth pursuing a doctoral degree in education if you already have an undergraduate degree? One…

A: We have given that  Sample sizes n1= 12 , n2= 17 Sample means xbar1= 46500  Xbar2= 45000 Standard…

Q: According to previous studies, 10% of the U.S. population is left-handed. Not knowing this, a high…

A: The following solution is provided below

Q: You are conducting a study of students doing work-study jobs on your campus. Among the questions on…

A: Parameter: A parameter is a numerical measure that describes an aspect of a population. Statistic: A…

Q: In a normally distributed population, one standard deviation from the mean most likely represents…

A: In a normal distribution, about 68% of the data falls within one standard deviation of the mean,…

Q: According to a study conducted by a statistical organization, the proportion of people who are…

A: Quantitative variables can be counted or measured, i.e, in this case the results are in terms of…

Q: Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more…

A: Null hypothesis H0:  The difference between mean salaries of statisticians in two regions  is $8000…

Q: 4. Find the first, second, and third quartiles for the sales amounts in the data provided and…

A: 4. The first quartile can be obtained using the excel formula “=QUARTILE.EXC(A1:A38,1)”. From the…

Q: Assume that 1,500,000 people take the ACT each year and their scores form a normal distribution. If…

A: Given that,1,500,000 people take the ACT each year and their scores form a normal distribution. We…

Q: A newspaper infographic titled "Social Media Jeopardizing Your Job?" summarized data from a survey…

A: The following solution is provided below

Q: ou are testing a claim about a population mean of 24. Find the test statistic given the following…

A: Here the sample mean is 22, the sample standard deviation is 10 and the sample size is 65.

Q: The governor of Florida would like to estimate the mean age of all Florida residents. To do so, he…

A: The population is the set of all subjects of interest.

Q: A researcher measures eye color for a sample of n = 50 people.  Which measure of central tendency…

A:

Q: The percentile is the:   Question 5 options:   same thing as a percentage.   percentage of scores…

A:

Q: The average McDonald's restaurant generates $3.1 million in sales each year with a standard…

A: The random variable sales generated by McDonald’s restaurants in Maryland follow normal…

Q: The mean of fifty sales receipts is $65.75 and the standard deviation is $10.55. Using Chebyshev’s…

A: Here, The mean of fifty sales receipts is $65.75 and the standard deviation is $10.55. Chebyshev’s…

Q: what measure of variability is to be computed with a median

A: Median is the mid ( second quartile ) of whole data. Median is measure of central tendency.