National car manufcturers market in south africa

Assignment Help Basic Statistics

Reference no: EM13112032

1. The share of the national car manufcturers market in South Africa is shown in the table below:

MANUFACTURER % OF SHARES

VW 37

Toyota 30

Delta 15

BMW 10

Mercedes 8

A random sample of 2000 car owners in Pretoria revealed the following ownership pattern:

VW = 758 Toyota = 680 Delta = 300 BMW = 162 Mercedes = 100

Does the ownership pattern differ significantly from the National pattern?
Investigate at the 5% level of significance.

2. It is believed that call centre operators should spend no longer than 10 minutes on each call, however a survey involoving a random sample of 49 operators found a mean call duration of 11 minutes with a standard deviation of 3 minutes. Test the Hypothesis at the 1% level of significance.

Reference no: EM13112032

Questions Cloud

Sample size and population standard deviation : A sample mean, sample size, and population standard deviation are given. Use the P-value approach to perform a one-mean z-test about the mean of the population from which the sample was drawn.

Explain how the juxtaglomerular appartus autoregulates : If we injected 3X hypertonic sucrose to a rabbit. What should the result be?

Determining anova and t test : A large discount chain compares the performance of its credit managers in Ohio and Illinois by comparing the mean dollar amounts owed by customers with delinquent charge accounts in these two states.

Determine the distribution number of cars : Let X be random variable which counts number of cars that, in given unit of time, pass by Joe's Barber Shop on Main Street. Determine the distribution of X?

National car manufcturers market in south africa : The share of the national car manufcturers market in South Africa is shown in the table below:

Draw a michaelis-menten plot for this enzyme : For an enzyme (5 µM) , the following initial velocities have been reported depending on the substrate concentration.

Calculate volume rain and mass of coal : How many metric tons of 5%-S coal would be needed to yield the H2SO4 required to produce a 2.5-cm rainfall of pH 2.00 over an area of 100 square kilometers?

Test the sociologist claim : In a random sample of 512 parents with young children, 275 admitted to spanking their child as a regular form of punishment. Use the classical approach, at a 10% level of significance, to test the sociologist's claim.

Assuming that michaelis-menten kinetics : Hiking in the deserts of New Mexico you encounter a strangely shaped, entirely smooth metallic rock. Oozing from the rock is a slime mold that you believe to be a new species never before seen (on earth). The mold fluoresces bright pink normally b..

User Account

All Pages