The following table shows the U.S. market share for smartphone manufacturers in 2013 according to the research

Question:

The following table shows the U.S. market share for smartphone manufacturers in 2013 according to the research firm comScore. The table also shows the frequency of purchases of smart phones by brand for a random sample of customers during 2014.

a. Using α = 0.05, perform a chisquare test to determine if the observed frequencies in the table are consistent with the comScore report.

b. Determine the p_value for the chisquare test statistic using Excel and interpret its meaning.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Business Statistics

ISBN: 9780321925121

2nd Edition

Authors: Robert A. Donnelly

See More Books

Question Posted: Jul 28, 2015 03:37 AM

See More Questions

The following table shows the U. S. market share for automotive manufacturers in 2013 according to Auto data. Also shown is the frequency of car purchases by manufacturer from a random sample of 220...
The following table shows key operating statistics for the four largest public accounting firms: a. Determine the revenue per partner and revenue per professional staff for each firm. Round to the...
The following table shows Renes total utility from eating escargot. Fill in the blanks that show the marginal utility that Rene derives from eatingescargot. Escargot Per Day Marginal Utility Total...
The shear shown is used to trim electronic-circuit-board laminates. Neglecting the thickness of the shearing blade and knowing that a vertical 3-kN shearing force at E is required to cut the...
U.S. International Corporation (USIC), a U.S. taxpayer, has investments in Foreign Entities A-G. Relevant information for these entities for the current fiscal year appears in the following table:...
Assume that Water Source Inc. has been purchasing a component necessary for its final product for $360 a unit. The factory is currently operating at 80% capacity, and no major increase in production...
a. Begin with the data from $n=185$ countries throughout the world that have valid (nonmissing) life expectancies. Plot the life expectancy versus the gross domestic product and private...
Burton Corporation commenced retailing operations on January 1, 2011. Purchases of merchandise inventory during 2011 and 2012 appear next: Burton Corporation sold 1,000 units during 2011 and 1,500...
Front-wheel drive (FWD) vehicles are propelleddifferentialsidetransfersweightaxlesringtransaxlegearhousingvehiclestransmission by the front wheels. For this reason, they must use a drive design...
Is Ashley Madison based on an ethical business model?
The U.S. Centers for Disease Control and Prevention (CDC) recommends people consume five servings of fruits and vegetables daily. A random sample of adults from various states was asked if they...
The following table shows the distribution of the ages of Ohio voters in a 2008 exit poll conducted by Quinnipiac University. The table also shows the observed frequencies from a random sample of...
The three forces and a couple shown are applied to an angle bracket. (a) Find the resultant of this system of forces. (b) Locate the points where the line of action of the resultant intersects line...
It requires 1 1 . 5 mL of a 0 . 5 0 0 M solution of KOH to titrate a 8 . 0 5 mL sample of HNO 3 . Determine the concentration of the HNO 3 solution.
At a given temperature, the elementary reaction AB, in the forward direction, is first order in A with a rate constant of 0.0260 s. The reverse reaction is first order in B and the rate constant is...
How much heat is required to heat 1 0 . 0 g of ice at - 5 . 0 0 oC to become liquid water at + 7 . 0 0 oC ? In this temperature range, the heat capacity of H O ( s ) is 3 7 . 7 J / mol * K , and the...
The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: = E Ryn 2 In this equation Ry stands for the Rydberg energy, and n stands for the principal quantum number of...
Draw the major product of the following SN2 reaction. CH3 -Br -CH3 Save Close OscerSketch Clear OscerSketch OSCER SKETCH CH B NOF Cl Br I Si P S Li Na * 1 + - ~ ++ XX CH3 -CH3 Br OH CH3
If, at a given instant, point B has a downward velocity v B determine the velocity of point A at this instant using the method of instantaneous center of zero velocity. Notice that for this motion to...
For the given transfer function: Vo(s) / Vi(s) = (s^2C^2R^2 + 1) / (s^2C^2R^2 + 4sCR + 1) Assumiing that 1/(CR) = 120 PI so write the matlab code to find the magnitude plot
Consider a linear regression model where y represents the response variable, x is a quantitative explanatory variable, and d is a dummy variable. The model is estimated as = 14.8 + 4.4x - 3.8d. a....
Using 50 observations, the following regression output is obtained from estimating y = 0 + 1 x + 2 d 1 + 3 d 2 + . a. Compute y for x = 250, d 1 = 1 and d 2 = 0; then compute y for x = 250, d 1 =...
House price y is estimated as a function of the square footage of a house x and a dummy variable d that equals 1 if the house has ocean views. The estimated house price, measured in $1,000s, is given...
Martinez Company buys merchandise on account from Marigold Company for $592. Martinez sells the goods to Ellis for $900 cash. Use a tabular summary to record the transactions for Martinez Company...
The section has tension and compression steel reinforcement. When the neutral axis depth is at infinity, c = , the section is in uniform compression, all points on the section have 0.003 compressive...
The Big Choo Choo Company (BCCC) owns a rail line from the town of Isolated to the coastal port of Notso. It cost them $20 million to build the rail line in 2016. It is now 2023. The Small Gold...

The following table shows the U.S. market share for smartphone manufacturers in 2013 according to the research

Question:

Market Share 2013 Observed Frequency Brand Apple Samsung HTC Motorola Other Total 36.3 21.0 10.2 9.1 23.4 2014 20 14 4 100 50

Step by Step Answer:

a H 0 The market share for US smartphone manufacturers in 2014 is consistent with ...View the full answer

Business Statistics

Students also viewed these Statistics questions