I have a team research project. We have completed the first part of the paper, but are stuck on where to go with the second half and need help with writing and research and statistical testing for it. I am posting both the first part assignment, and the 2nd part which we need help with. We need help with all parts of the 2nd ha
A marketing analyst was studying the readability of two advertisements, each produced by a major company, and printed in the newspaper. A random sample of 100 marketing professors was selected. Fifty were randomly assigned to read the advertisement produced by Company A, and the other fifty were to read the advertisement produce
The following hypothesis are given: Ho: p less or equal to 0 H1: p >0 A random sample of 12 observations indicated a correlation of .32 Can we conclude that the correlation in the population is greater than 0? Use the .05 significance level. Ho is rejected if t> 1.714 t= .32SQRT 32-5/SQRT 1-(.32)^=? I don't know
Twelve students randomly selected from the entering class of college had the following SAT scores in math and English population mean=500, sigma=100 STUDENT ENGLISH MATH 1 500 545 2 551 662 3 493 561 4 519
25 randomly selected tires from a tire company has the actual tread life: 40000 40100 38400 39170 36470 41360 37980 40060 38810 40370 39860 39280 41210 38660 38960 41780 39680 36240 38000 41120 39480 35160 42270 41320 39860 The company claims that this particular tire has a tread life of 40000 miles. Is this accurate or in
A random sample of twelve 100 watt light bulbs made by Lite Up Your Life Inc had the following burn times: 1810, 1835, 1720, 1860, 2085, 1605, 1920, 1930, 1915, 1995, 1975, and 1975 hours. A random sample of fifteen 100 watt bulbs made by Lights R Us had the following burn times: 2065, 1855, 2135, 2129, 1795, 2245, 2085, 2135,
The following prices for seven games were taken from MacPrice and MacBuy catalog: GAME MACPRICE MACBUY MYST 22.99 24.99 REBEL ASSAULT 14.99 12.99 SOLITAIRE 14.99 12.99 RIVEN 29.99
A new procedure was tried on a number of patients. they were later asked whether they preferred the new procedure, the old procedure, or had no preference. Based upon the results, how do people feel? Use a 6 step hypothesis test prefer new prefer old no preference
Tourism is one consideration for Coffee time's future. A survey of 1233 visitors to Mumbai last year revealed that 110 visited a small cafe during their visit. Laura claims that 10% of tourists will include a visit to a cafe. Use a 0.05 significance level to test her claim. Would it be wise for her to use that claim in tryin
A number of minor automobile accidents occur at various high-risk intersections. A study was done. Eight intersections were chosen at random. The number of minor accidents during a 6-month period before and after the modifications were: Number of accidents A
Six people have declared their intentions to run for a county commission seat in the next general election. A political poll is conducted three-quarters of the way into the campaign to determine if there are any clear preferences on the part of the voters. One thousand twenty randomly-selected voters were asked to indicate thei
Research at the University of Toledo indicates that 50% of the students change their major area of study after the first year in a program. The random sample ot 100 students in the College of Business revealed that 48 had changed their major area of study after their first year of the program. Has there been a significant decrea
--- 1. Given the following population data: 1,2,4,5,8,9,12, and the lists of all samples of size 2 and 5: Samples of n = 2 xbar Samples of n = 5 xbar 1,2 1.5 For population 1,2,4,5,8 4 1,4 2.5 s = ? 1,2,4,5,9 4.2 1,5 3 m = ? 1,2,4,5,12 4.8 1,8 4.5 1,2,4,8,9 4.8 1,9 5 1,2,4,8,12 5.4 1,12 6.5 1,2,4,
The following are the GMAT scores and the GPA's of a random sample of 6 students in a graduate school. During a 'cram' weekend the students learned several GMAT applications. With a 0.05 los did the GPAs increase? BEFORE AFTER GMAT GPA GPA 610 3.60 3.70 470 3.25 3.30 590 3.50 3.45 520 3.
Surveys have been widely used by politicians around the world as a way of monitoring the opinions of the electorate. Six months ago, a survey was undertaken to determine the degree of support for national party leader. Of a sample of 1,100, 56% indicated that they would vote for this politician. This month, another survey of 800
Studies from a local mall show the typical shopper spends 0.75 hrs shopping. The standard deviation is 0.10 hours. A sample of 45 shoppers revealed the mean time spent increased to .080 hrs. Develop a hypothesis to determine if the mean time spent is more than 0.75 hrs using the .05 significance level. Suppose the mean sh
Calculate the rate of return for one year (reported in percent) for a sample of 12 mutual funds: 4.634 4.15 4.76 4.70 4.65 4.52 4.70 5.06 4.42 4.51 4.24 4.52. Using .05 significance level, is it reasonable to conclude that the mean rate of return is 4.50 percent?
The MBA department is concerned that dual degree students may be receiving lower grades than the regular MBA students. Two independent random samples have been selected. 100 observations from population 1 (dual degree students) and 100 from population 2 (MBA students). The sample means obtained are X1(bar)=83 and X2(bar)=85. It
1. An experiment is designed to test the effectiveness of a specific type of gender selection process, using 15 couples trying to have baby girls. Here is the question: The empirical rule applies to bell-shaped (normal) distributions. Is the binomial probability distribution for this experiment approximately normal? Show w
1. Suppose a sample of size 25 is selected from an underlying normal population, the population standard deviation is known to be 8, and the sample mean is 57. Carry out a hypothesis test at the 0.05 level of significance, where the null hypothesis H0 is  = 60 and the alternative hypothesis H1 is   60.
A reasearcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to test the claim that the treatment population mean is smaller than the control population. Treatment group n=90 sample average (x-bar)=168.1 sample standard d
A marketing survey involves product recognition in New York and California. Of 600 New Yorkers surveyed, 195 knew the product while 150 out of 614 Californians knew the product. At the 0.05 level of significance, test the claim that the recognition rates are the same in both states. a. Formulate the hypotheses. b. Test the
See attached document. --- #1 A sample of General Mills employees was studied to determine their degree of satisfaction with their present life. A special index, called the index of satisfaction, was used to measure satisfaction. Six factors were studied, namely, age at the time of first marriage (X1), annual income (X
Need help with examples attached. There is a comment in two cells that have a formula for hypotheses...I did not know how to place the digits directly above / under each other. --- #1 The following hypotheses are given: H0: σ21 = σ22 H1: σ21 ≠ σ22 A random sample of eight observations from the firs
A medical school claims that more than 32% of its students plan to go into general practice. It is found that among a random sample of 130 students, 46 of them plan to go into general practice. a. Formulate the hypotheses to test the medical school's claim. b. Test these hypotheses and draw a conclusion about the claim. Us
A large public utility company wants to compare the consumption of electricity during the summer season for single-family houses in two counties that it services. For each household sampled, the monthly electric bill is recorded with the following results: (Note the italicized X below should have a line above it.) X $115
The director of golf for the Links Group wishes to study the number of rounds of golf played by members on weekdays. He gathered the following sample information for 520 rounds. Day Rounds Monday 124 Tuesday 74 Wednesday 104 Thursday 98 Friday 120 At t
A sample of 12 homes sold last week in St. Paul, Minnesota, is selected. Can we conclude that as the size of the home (reported below in thousands of square feet) increases, the selling price (reported in $ thousands) also increases? Home Size Selling Home Size Selling (thousands Price (thousands of
Question: Mary Jo Fitzpatrick is the Vice President for Nursing Services at St. Lukes Memorial Hospital. Recently she noticed in the job postings for nurses that those that are unionized seem to offer higher wages. She decided to investigate and gather the following sample information. Would it be reasonable for her to conclude
To market a new white wine, a winemaker decides to use two different advertising agencies one operating in the East and one in the West. After the white wine has been on the market for 8 months, independent random samples of wine drinkers are taken from each of the two regions and questioned concerning their white wine preferen