Solve the following problem. Follow the Steps in Hypothesis Testing A recent survey stated that households received an average of 37 videocalls per month. To test the claim, a researcher surveyed 29 households and found that the average number of calls was 34.9. The standard deviation of the sample was 6. Solve for the test statistic. The time in minutes taken by a biological cell to divide into cells has a normal distribution. From past experience, the population of 30 cells have a standard deviation assumed to be 3.5 minutes. When 46 cells were observed, the mean time taken by them to divide into two was 31.6 minutes. Solve for the test statistic