Question

A study was conducted to determine if the salaries of librarians from two neighboring cities were...

A study was conducted to determine if the salaries of librarians from two neighboring cities were equal. A sample of 15 librarians from each city was randomly selected. The mean from the first city was $28,900 with a standard deviation of $2300. The mean from the second city was $30,300 with a standard deviation of $2100. Test the hypothesis that the salaries from both cities are equal. Use α = 0.025.

State the null and alternative hypotheses. p value , t test , is it statement conclusion reject or fail .

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A study was conducted to determine if the salaries of librarians from two neighboring cities were...
A study was conducted to determine if the salaries of librarians from two neighboring cities were equal. Asample of 15 librarians from each city was randomly selected. The mean from the first city was $28,900 with astandard deviation of $2300. The mean from the second city was $30,300 with a standard deviation of $2100.Test the hypothesis that the mean salaries from both cities are equal. Assume not pooled case. H0 H1 P-value   decision   conclusion  
A study was conducted to determine if the salaries of librarians from two neighboring cities were...
A study was conducted to determine if the salaries of librarians from two neighboring cities were equal. A sample of 15 librarians from each city was randomly selected. The mean from the first city was $28,900 with a standard deviation of $2300. The mean from the second city was $30,300 with a standard deviation of $2100. Construct a 95% confidence interval for u1 - u2. A) (-2871, 567) B) (-2054,238 C) (-3125, 325) D) (-4081, 597)
A study was conducted to determine if the salaries of elementary school teachers from two neighboring...
A study was conducted to determine if the salaries of elementary school teachers from two neighboring states were equal. A sample of 100 teachers from each state was randomly selected. The mean from the first state was $29,200 with a population standard deviation of $2300. The mean from the second state was $30,600 with a population standard deviation of $2100. Test the claim that the salaries from both states are equal. Use α = 0.05.
A study was conducted to determine if the salaries of librarians from two neighboring states were...
A study was conducted to determine if the salaries of librarians from two neighboring states were equal. A sample of 100 librarians from each state was randomly selected. The mean from the first state was $29,800 with a standard deviation of $2,200. The mean from the second state was $31,400 with a standard deviation of $2,150. Test the hypothesis that there is no difference in the salaries from both states at the 0.05 significance level. Determine the test statistic. Round...
A study was conducted to estimate the difference in the mean salaries of elementary school teachers...
A study was conducted to estimate the difference in the mean salaries of elementary school teachers from two neighboring states. A sample of 10 teachers from the Indiana had a mean salary of $28,900 with a standard deviation of $2300. A sample of 14 teachers from Michigan had a mean salary of $30,300 with a standard deviation of $2100. Determine a 95% confidence interval for the difference between the mean salary in Indiana and Michigan.(Assume population variances are different.) write...
A study was conducted to determine if the salaries of elementary school teachers from two neighboring...
A study was conducted to determine if the salaries of elementary school teachers from two neighboring states were different. A sample of 100 teachers from each state were randomly selected. The mean from the first state was $34, 500 with a population standard deviation of $2875. The mean from the second state was $35, 450 with a population standard deviation of $3200. Test the claim that the salaries from both states are different. Use α = 0.01.
a) Identify the claim: state the null and alternative hypotheses. b) Determine the test: left-tailed, right-tailed,...
a) Identify the claim: state the null and alternative hypotheses. b) Determine the test: left-tailed, right-tailed, or two-tailed. c) Graph your bell-shaped curve and label your levels of significance or critical value. d) Find your standardized test statistic ? and label it on your graph. e) Decide whether to reject or fail to reject the null hypothesis. f) Interpret your result. A study was conducted to determine if the salaries of elementary school teachers from two neighboring states were equal....
2. A study has been conducted to determine whether the mean spending for internet services differs...
2. A study has been conducted to determine whether the mean spending for internet services differs for residents of three cities. Random samples of people were selected from each city and their spending was recorded. The following ANOVA-single factor computer output was generated. Anova: Single Factor ANOVA Source of Variation SS df MS F Between Groups ? 2 12.3333333 ? Within Groups 46.5714285 ? ? Total 71.2380952 20 a. Fill-in the missing values denoted by ‘?’. b. Write down the...
In a study of annual salaries of employees, random samples were selected from two companies to...
In a study of annual salaries of employees, random samples were selected from two companies to test if there is a difference in average salaries. For Company "X", the sample was size 65, the sample mean was $47,000 and the population standard deviation is assumed to be $11,000. For Company "Y", the sample size was 55, the sample mean was $44,000 and the population standard deviation is assumed to be $10,000. Test for a difference in average salaries at a...
In a study of monthly salary distribution of residents in Paris conducted in year 2015, it...
In a study of monthly salary distribution of residents in Paris conducted in year 2015, it was found that the salaries had an average of €2200 (EURO) and a standard deviation of €550. One years later (in 2016), it was suspected that the average salary had increased. A hypothesis test was conducted at a significance level of 5% to test the suspicion. A random sample of size 64 was chosen with mean of €2385 and standard deviation of €650. Question...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT