Use a two-tailed test with alpha 005 to determine whether

Reference no: EM13611613

A new over-the -counter cold medication includes a warning label stating that it "may cause drowsiness." A researcher would like to evaluate this effect. It is known that under regular circumstances the distribution of reaction times is normal with u = 200. A sample of n = 9 participants is obtained. Each person is given a new cold medication, and 1 hour later, reaction time is measured for each individual. The average reaction time for this sample is M = 206 with SS = 648. The researcher would like to use a hypothesis test with alpha = 0.05 to evaluate the effect of the medication.

a) Use a two-tailed test with alpha = 0.05 to determine whether the medication has a significant effect on reaction time.
b) Write a sentence that demonstrates how the outcome of the hypothesis test would appear in a research report.
c) Use a one-tailed test with alpha = 0.05 to determine whether the medication produces a significant increase in reaction time.
d) Write a sentience that demonstrates how the outcome of the one-tailed hypothesis test would appear in a research report.

Reference no: EM13611613

Questions Cloud

Let x1 and x2 be two independent random variables each : let x1 and x2 be two independent random variables each representing the number of heads in two flips of a fair coin.

According to a survey of american households the : according to a survey of american households the probability that the residents own 2 cars given annual household

The time required for the credit application process : many retails stores offer their own credit cards. at the time of the credit application the customer is given a 10

Waiting times to receive food after placing an order at the : waiting times to receive food after placing an order at the local subway sandwich shop follow an exponential

Use a two-tailed test with alpha 005 to determine whether : a new over-the -counter cold medication includes a warning label stating that it may cause drowsiness. a researcher

An accounting firm has been hired by a large computer : an accounting firm has been hired by a large computer company to test whether the proportion of accounts receivables

You wish to test if there is a difference in the average : you wish to test if there is a difference in the average time male and female students spend studying for a business

Jacobsen leasing company leases a new machine that has a : jacobsen leasing company leases a new machine that has a cost and fair value of 71000 to stadler corporation on a

Suppose we have a pile of 20 batteries of which ve are dead : suppose we have a pile of 20 batteries of which ?ve are dead. if we select 4 batteries at random let x be the random

User Account

All Pages