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A smaller standard deviation will O make a normal distribution flatter. O make a normal distribution more narrow and peaked. O have no impact on the shape of the normal distribution.A smaller sample size will 0 result in a smaller standard deviation of the sampling distribution. 0 result in a larger standard deviation of the sampling distribution. O have no impact on the standard deviation of the sampling distribution . Given IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15, the proportion of people with IQs greater than 130 is A sample of 25 cans of Del Monte whole kernel corn were randomly sampled from a packing line. The underlying distribution is symmetric. The average weight of corn kernels per can (before adding water) was found to be 367 grams, with a sample standard deviation of 15 grams. Construct the 95% condence interval. What is the value of corn kernel weight represents the upper bound of the 95% condence interval. Round your answer to the nearest whole gram. Your Answer: :]