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Your company has developed a new product .Your company is a reputed company with 50% market share of same range of products. Your competitors also come with their new products equal to your new product. Based on your previous experience, you initially estimated that, your market share of the new product would be 50%. You carry out random sampling of 25 customers who have purchased the new product ad realize that only 8 of them have actually purchased your product. Plan a hypothesis test to examine whether you are likely to have a half of market share.
Charts when the Mean and the Standard Deviation are not known We consider the data corresponding to the example of Piston India Limited. Since we do not know population mean a
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You will recall the function pnorm() from lectures. Using this, or otherwise, Dteremine the probability of a standard Gaussian random variable exceeding 1.3. Using table(), or
Deviation Measures The drawback of the range as a measure of dispersion is that it takes into account the values of only two data points - the largest and the smallest. One
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In 120 tosses of a coin, 45 heads and 75 tails are observed. Is this a balanced coin? Use a=0.05. (Follow the basic steps of hypothesis testing)
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The score distribution shown in the table is for all students who took a yearly AP statistical exam. An AP statistics teacher had 59 students preparing to take the AP exam. Though
Assumptions in ANOVA The various populations from which the samples are drawn should be normal and have the same variance. The requirement of normality can be discarded if t
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