Information of sample hypothesis testing

Reference no: EM13110351

Objective: Identify the formal hypothesis testing process.

1. If a null hypothesis is not rejected at the 0.10 level, it may be rejected at the 0.05 level.

a. 0 True

b. 0 False

Objective: Perform a hypothesis test of one proportion.

2. The Roman Senate has become concerned about the loyalty of the army in Gaul commanded by Julius Caesar. They claim that of the 80,000 men in the army, at least 28,000 are foreign barbarians. Caesar believes that there are fewer barbarians than that, so the Senate should not worry. He polls one legion of 1,000 men and finds that 340 of them are barbarians.

Assume the value of the test statistic is -0.70. Calculate the p-value for this test using Excel.

a. 0 =NORMSDIST(-0.7)

b. 0 =TDIST(-0.70,999,1)

c. 0 =2*(NORMSDIST(-0.7))

d. 0 =TDIST(0.7,999,2)

Objective: Perform a hypothesis test of one population mean using the standard normal distribution.

3. A pooled proportion estimate can be used to calculate the test statistic for a test of the equality of proportions when the

a. 0 populations are normally distributed

b. 0 sample sizes are small

c. 0 samples are independently drawn from the populations

d. 0 null hypothesis states that the two population proportions are equal

Objective: Interpret the results of hypothesis tests.

4. Sample sizes of two independent samples must be identical if we plan to test for a difference of means.

a. 0 True
b. 0 False

Reference no: EM13110351

Questions Cloud

What is the energy of activation for the reverse reaction : For a given reaction, G = -4 kcal/mole and the energy of activation for the uncatalyzed reaction = 5 kcal/mole. You add an enzyme, after which the activation energy falls to 3 kcal/mole. What is the energy of activation for the reverse reaction in..

Calculate the frequency of the silver gene : Platinum color in foxes is produced by a heterozygous genotype involving interactions between a gene for silver and a co-dominant lethal gene. The silver gene in the homozygous state produces silver color; the lethal homozygote usually dies during..

Difference in means of two groups : You are given the following data. Test the claim that there is a difference in the means of the two groups. Use = 0.01. State the null and alternate hypotheses

Probability that high cholesterol influence walking speed : Would he be justified in concluding that walking slowly may cause high cholesterol or that high cholesterol may influence walking speed? Explain why or why not.

Information of sample hypothesis testing : Identify the formal hypothesis testing process. Perform a hypothesis test of one proportion.

Supply chain management based question : Pizza USA is a chain of pizza restaurants offers sit down and take out service. Part I as the customer: make a list of the attributes of a pizza delivery of pizza delivery that are important you as a customer.

Hypothesis testing of coin : A coin was flipped 100 times and came up heads 59 times and tails 41 times. The expected outcome was to land on heads or tails 50 times each.

Which muscle will depress the scapula or elevate the ribs : Which muscle will depress the scapula or elevate the ribs.

Determine probability using binomial distribution : Determine the probability, using binomial distribution, of obtaining 4 or more nonconforming units when sampling 30 computers from batch known to be 10% nonconforming.

User Account

All Pages