assignment-1_basic-statistics-level1_q9

assignment-1_stats-level1_q11

Q11) Suppose we want to estimate the average weight of an adult male in Mexico. We draw a random sample of 2,000 men from a population of 3,000,000 men and weigh them. We find that the average person in our sample weighs 200 pounds, and the standard deviation of the sample is 30 pounds. Calculate 94%,98%,96% confidence interval?

assignment-1_stats-level1_q7

Assignment Basic stats

assignment-1_stats_level1_q24

) A Government company claims that an average light bulb lasts 270 days. A researcher randomly selects 18 bulbs for testing. The sampled bulbs last an average of 260 days, with a standard deviation of 90 days. If the CEO's claim were true, what is the probability that 18 randomly selected bulbs would have an average life of no more than 260 days

assignment1-basic_statistic_level1

assignment1-stats-level1_q12

Q12-Below are the scores obtained by a student in tests 34,36,36,38,38,39,39,40,40,41,41,41,41,42,42,45,49,56 .Find mean, median, variance, standard deviation.What can we say about the student marks?

assignment1_stats-level1_q21

21) Q Check whether the data follows normal distribution. a-Check whether the MPG of Cars follows Normal Distribution

assignment1_stats-level1_q22

Q 22) Calculate the Z scores of 90% confidence interval,94% confidence interval, 60% confidence interval .

assignment1_stats-level1_q23

Q 23) Calculate the t scores of 95% confidence interval, 96% confidence interval, 99% confidence interval for sample size of 25

assignment2--normal-distribution-functions-of-random-variables

assignment2-confidence-intervals

assignment2-sampling-distributions-and-central-limit-theorem

assignment3-hypothesis-testing-

assignment4-simple-linear-regression

assignments1-stats_level1_q20

Q 20) Calculate probability from the given dataset for the below cases .

asssignment2-descriptive-statistics-and-probability

core_python

ds_python

Data Science

mysql-assignment-

power-bi-assignment

project-performance-checks-of-airlines-

project-stock-market-analysis

richamishra97