An outcome is considered unusual if it is more than two standard deviations from the mea A survey for brand recognition is done and it is determined that 57% of consumers have heard of Dull Computer Company. A survey of 600 randomly selected consumers is to be conducted. For such groups of 600, compute the mean and standard deviation for consumers recognizing the Dull Computer Company. (Round to two decimal places, as needed.) The mean, = The standard deviation = Compute values separating results that are significantly low or significantly high. • For such groups, less than significantly low number. For such groups, more than consumers recognizing this brand is a consumers recognizing this brand is a significantly high number. Suppose out of one such group of 600, there are 375 individuals that recognize the Dull Computer Company. Is this result unusual? (Type in "Y" for yes and "N for no.)

Statistics Question

Can you please do number 4 with work and a graph on paper

The mean score on a driving exam for a group of drivers education students is 72 points with a standard deviation of 6 points. apply Chebyshev theorem  to the data using K=2. Interpret the results. Simplify answer.

The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?

The mean number of carats for 313 diamonds in a sample data set is 0.506 carats, with a standard deviation of 0.145 carats. Use the mean and standard deviation to form an interval that will contain at least 75% of the carat values in the data set. (Round your answer to 3 decimal places)

i already have answer in question A-D. please help me to solve the rest. topic is unkown standard deviation

Suppose a researcher wants to test if the average diastolic blood pressure in African-Americans is different than the average diastolic blood pressure in the general population. Note that the average diastolic blood pressure in the general population is 70 mmHG. The researcher retains the null hypothesis, so she therefore concludes... Group of answer choices The mean diastolic blood pressure in African-Americans is equal to that of the general population The mean diastolic blood pressure in African-Americans is different than that of the general population

Exhibit 6-5The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces.   Refer to Exhibit 6-5. What percentage of items will weigh between 6.4 and 8.9 ounces?

The table available below shows the weights (in pounds) for a sample of vacuum cleaners. The weights are classified according to vacuum cleaner type. At a = 0.10, can you conclude that at least one mean vacuum cleaner weight is different from the others? Click the icon to view the vacuum cleaner weight data. Let μBU, BLU, and μTC represent the mean weights for bagged upright, bagless upright, and top canister vacuums respectively. What are the hypotheses for this test? A. Ho: At least one of the means is different. Ha: MBUHBLUPTC B. Ho: "BU HBLU HTC # Ha: MBUHBLUPTC C. Ho: MBUHBLU = HTC Ha: At least one of the means is different. D. Ho: MBU - HBLU = μTC Ha: HBU #BLU HTC What is the test statistic? F = 12.56 (Round to two decimal places as needed.) What is the P-value? P-value = 0.000624 (Round to three decimal places as needed.)