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250 words

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2 Pages
###### Management

Choose an even/campaign happened in UK or worldwide recently. 1- Define the hashtags related to tweets of this topic. 2- Who are most influential followers and what are they interested in? Apply topic ...

Type

Programming

Subject

Statistics

5 Pages
###### Management

KnitR 3 Now we'll integrate more things into our investigation. First, fix any errors in your previous knitR work before continuing. Now we're going to dig into our cars some more. Start by using the ...

Type

Programming

Subject

Statistics

73 Pages

Running head: - EXPLORING I NNOVATION AND ENTREPRENEURSHIP EXPLORING I NNOVATION AND ENTREPRENEURSHIP Name of the Student Name of the University Author Note 1 EXPLOR I ...

Course

B205A

Subject

Statistics

University

Arab Open University

Season

Spring

12 Pages
###### BA3202QA Using and Managing Data and Information

Task 1 A supermarket manager wanted to investigate the profile of shoppers resistant to the use of self-checkout counters available at the store he manages and to find out the reasons behind their res ...

Course

BA3202QA

Subject

Statistics

University

De Montfort University

### Question

Question 1 (a) Suppose the lifetime of ABC light bulbs follows a normal distribution with mean lifetime of 800 hours and standard deviation of 60 hours. Compute the probability that a random sample of 16 light bulbs will have mean lifetime of: (i) between 790 and 810 hours.(ii) less than 785 hours.  (iii) more than 820 hours.
(b) A survey questionnaire was sent to 100 students. Assume the probability that any one of these students would reply is 0.2. Using the normal approximation method, solve and compute the probability of getting at least 15 replies.  (c) A one-sample t test was conducted using R commands. The output results and the 95 % confidence interval are shown in Table Q1
(c). Comment on the statistical significance of the null hypothesis.

### MTH220E Statistical Methods and Inference

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## More MTH220e MTH220E Statistical Methods and Inference: Questions & Answers

Q

### Management

Choose an even/campaign happened in UK or worldwide recently. 1- Define the hashtags related to tweets of this topic. 2- Who are most influential followers and what are they interested in? Apply topic modelling techniques to discover most common topics related to this trend. Represent these topics u ...

Q

### Management

KnitR 3 Now we'll integrate more things into our investigation. First, fix any errors in your previous knitR work before continuing. Now we're going to dig into our cars some more. Start by using the lattice library to do a histogram of the mtcars data we've been working with. Show a histogram of th ...

Q

Running head: - EXPLORING I NNOVATION AND ENTREPRENEURSHIP EXPLORING I NNOVATION AND ENTREPRENEURSHIP Name of the Student Name of the University Author Note 1 EXPLOR ING I NNOVATION AND ENTREPRENEURSHIP Table of Contents 1. Part -1: Case Study: .............. ...

Q

### BA3202QA Using and Managing Data and Information

Task 1 A supermarket manager wanted to investigate the profile of shoppers resistant to the use of self-checkout counters available at the store he manages and to find out the reasons behind their resistance. He asks three of his staff to conduct a survey among customers using the store in Sheffield ...

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