(Answered) The null and alternate hypothesis ish0 micro1le micro2h0

Statistics

The null and alternate hypothesis is:

H0: µ1≤ µ2

H0: µ1 > µ2

A random sample of 20 items from the first population showed a mean of 100 and a standard deviation of 15. A sample of 16 items for the second population showed a mean of 94 and a standard deviation of 8. Use the .05 significant level.

a. Find the degree of freedom for unequal variance test.

b. State the decision rule for .05 significance level.

c. Compute the value of the test statistic.

d. What is your decision regarding the null hypothesis? Use the .05 significance level.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91523538
Price:- $30

Verified Expert

Priced at $60 Now at $30, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Assume that when adults with smartphones are randomly

Assume that when adults with smartphones are randomly? selected, 42?% use them in meetings or classes. If 7 adult smartphone users are randomly? selected, find the probability that at least 5 of them use their smartphone ...

1 let z be a standard normal random variable with mean 0

1) Let Z be a standard normal random variable with mean = 0 and standard deviation = 1. Us the normal table to find the following answers. a) P(0 b) P(-1.22 c) Find the value Z 0 such that P(0 0 )= 0.4901. 2) On a typic ...

In a sample of 20 cups of coffee at the local coffee shop

In a sample of 20 cups of coffee at the local coffee shop, the average temperature was 162.5 degrees with a standard deviation of 14.1 degrees. What would be the 95% confidence interval for the temperature of your cup of ...

Data collected over a long period of time showed that a

Data collected over a long period of time showed that a particular genetic defect occurs in 1 of every 1000 children. Let X be the random variable "number of children with genetic defect in a sample of 50,000 children ex ...

A coin is randomly picked from a collection of 10 coins the

A coin is randomly picked from a collection of 10 coins, the ith coin having a probabiliity i/10 of coming up heads. The coin in then flipped repeatedly until a head appears. Let X be the number of flips necessary. Find ...

Can someone explain this to me or draw it out so that i can

Can someone explain this to me? Or draw it out so that I can understand. You may see a problem like the following: a mean score of 20 and SD of 3, and asked what percentage of cases will be between 17 and 23, you would r ...

A population has a mean mu79 and anbspstandard deviation

A population has a mean μ=79 and a standard deviation σ=24. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=248 μx= ?Simplify your? answer. σx= rounded to three decimal ...

The company financial officer was interested in the average

The company financial officer was interested in the average cost of PCs that had been purchased in the past six months. A random sample of the price of 10 computers was taken with the following results (mean = $3,213): $ ...

A survey found that people keep their televisions an

A survey found that people keep their televisions an average of 5.8 years. The standard deviation is 0.76 year. If a person decides to buy a new TV, find the probability that he or she owned the old one for the given amo ...

You invested 7900 one year ago today it is worth 865490

You invested $7,900 one year ago. Today it is worth $8,654.90. What annual rate of interest did you earn? [use annual compounding]

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert