Explain the value of the chi-square test statistic

Assignment Help Basic Statistics
Reference no: EM13121172

A survey of industrial salespeople who are either self-employed, work for small, medium-sized, or large firms revealed the following with respect to incomes:

Of those who earn less than $20,000, 9 are self-employed, 12 are employed by small firms, 40 by medium size firms, and 89 by large firms.

Of those who earn $20,000 to $39,999, 11 are self-employed, 10 are employed by small firms, 45 by medium size firms, and 104 by large firms.

Of those who earn $40,000 or more, 10 are self-employed, 13 are employed by small firms, 50 by medium size firms, and 107 by large firms.

Using the .05 level of significance, use a chi-square test to test the hypothesis that there is no relationship between the income level of the industrial salespeople and their employment status. Be sure to state the critical value, the value of the Chi-square test statistic, and your decision (accept/reject)

Reference no: EM13121172

Questions Cloud

Least common divisor of rational expression : Find the LCD for the following rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator.
What is the apr and ear of your investment : You bought a stock three months ago for $73.82 per share. The stock paid no dividends. The current share price is $76.09.
Amount of wiley net income for the month : Wiley Company had total revenues of $300,000 for a recent month. During the month the company incurred operating expenses of $205,000 and purchased land for $45,000. Compute the amount of Wiley's net income for the month.
What is the molarity of the calcium ion : The average concentration of calcium ion in seawater is 412 mg of calcium ion per kg of seawater. What is the molarity of the calcium ion if the density of the seawater is 1.025 g/mL?
Explain the value of the chi-square test statistic : Income level of the industrial salespeople and their employment status. Be sure to state the critical value, the value of the Chi-square test statistic, and your decision (accept/reject).
What mass of the gas dissolves in water : At 25 c and 1.0 atm, 0.25 g of a gas dissolves in 1.00 L of water. What mass of the gas dissolves in 1.00 L of water at 25 c and 3.0 atm?
Distance traveled between chicago and st louis : It is approximately 300 miles from Chicago, Illinois, to St. Louis, Missouri. allowing for various traffic conditions, a driver can average approximately 60 miles per hour.
Investment expected return and its standard deviation : (Expected rate of return and risk) Carter Inc. is evaluating a security. One-year Treasury bills are currently paying 9.1 percent. Calculate the investment's expected return and its standard deviation. Should Carter invest in this security?
Find shape of sample distribution is approximately normal : The mean of the sampling distribution is 6 ounces. b) The standard deviation of the sampling distribution is 2.5 ounces. c) The shape of the sample distribution is approximately normal. d) All of the above are correct.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determining average number of calls

The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, or 2. The probabilities are the same for each of these (1/3).

  Relationship between objectives and goals

Critically discuss the difference among strategic, long-term, and short-term objectives? What is the relationship between objectives and goals? What are examples of this relationship?

  Deriving oc curve using c chart

Draw the OC curve. If the average number of defects increased by to 10 per tractor, what would the probability of detecting the shift in a control chart?

  Sample size for estimating the population mean

How large a sample should be taken if the desired margin of error E is:

  Required probability for binomial distribution

What is the probability that he will answer all questions correctly?

  Poisson distribution-confidence interval

The mean number of cargo ships that arrive at a port is 3 per day. The port has staff and facilities to handle up to 6 ships in a day. Using the Poisson distribution, find the probability that, on a given day,

  Find the confidence interval for population mean

Use the population standard deviation along with the sample mean, S, and find a 92% confidence interval for the population mean. Is the true population mean contained in this interval?

  Construct confidence interval for true proportion of market

Construct a 95% confidence interval for the true proportion of the market who still refuse to visit any of the restaurants in the chain three months after the event.

  What is the mean fill of these jars

If the variability of the filling machine is reduced to 0.025 ounce, verify that this will lower the required average amount of coffee to 4.050 ounces and yet keep 98 percent of the jars above 4 ounces.

  Determine confidence interval for the population mean

A sample of 49 observations is taken from a normal population. The sample mean is 55 and the sample standard deviation is 10. Determine the 99% confidence interval for the population mean.

  Statistics-probability-random sample

The mean weight of newborn babies in a Long Island Community is 7.5 lbs with a standard deviation of 1.4 lbs. What is the probability that a random sample of 49 babies has a sample mean weight of at least 7.2lbs?

  Using the t-table-what is the p-value

Suppose that a random sample of 14 cars shows an average speed of 24.0 mph, with a sample standard deviation of 2.2 mph. Assume that the speeds of cars are normally distributed. Using the T-table, what is the p-value?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd